21977280

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{587}}^1$

素因数の和:623

約数の個数: 168

約数和(自身を含む): 81546192

約数和(自身を除く): 59568912

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 64, 65, 72, 78, 80, 90, 96, 104, 117, 120, 130, 144, 156, 160, 180, 192, 195, 208, 234, 240, 260, 288, 312, 320, 360, 390, 416, 468, 480, 520, 576, 585, 587, 624, 720, 780, 832, 936, 960, 1040, 1170, 1174, 1248, 1440, 1560, 1761, 1872, 2080, 2340, 2348, 2496, 2880, 2935, 3120, 3522, 3744, 4160, 4680, 4696, 5283, 5870, 6240, 7044, 7488, 7631, 8805, 9360, 9392, 10566, 11740, 12480, 14088, 15262, 17610, 18720, 18784, 21132, 22893, 23480, 26415, 28176, 30524, 35220, 37440, 37568, 38155, 42264, 45786, 46960, 52830, 56352, 61048, 68679, 70440, 76310, 84528, 91572, 93920, 105660, 112704, 114465, 122096, 137358, 140880, 152620, 169056, 183144, 187840, 211320, 228930, 244192, 274716, 281760, 305240, 338112, 343395, 366288, 422640, 457860, 488384, 549432, 563520, 610480, 686790, 732576, 845280, 915720, 1098864, 1220960, 1373580, 1465152, 1690560, 1831440, 2197728, 2441920, 2747160, 3662880, 4395456, 5494320, 7325760, 10988640, 21977280]

約数ペア:

[(1, 21977280), (2, 10988640), (3, 7325760), (4, 5494320), (5, 4395456), (6, 3662880), (8, 2747160), (9, 2441920), (10, 2197728), (12, 1831440), (13, 1690560), (15, 1465152), (16, 1373580), (18, 1220960), (20, 1098864), (24, 915720), (26, 845280), (30, 732576), (32, 686790), (36, 610480), (39, 563520), (40, 549432), (45, 488384), (48, 457860), (52, 422640), (60, 366288), (64, 343395), (65, 338112), (72, 305240), (78, 281760), (80, 274716), (90, 244192), (96, 228930), (104, 211320), (117, 187840), (120, 183144), (130, 169056), (144, 152620), (156, 140880), (160, 137358), (180, 122096), (192, 114465), (195, 112704), (208, 105660), (234, 93920), (240, 91572), (260, 84528), (288, 76310), (312, 70440), (320, 68679), (360, 61048), (390, 56352), (416, 52830), (468, 46960), (480, 45786), (520, 42264), (576, 38155), (585, 37568), (587, 37440), (624, 35220), (720, 30524), (780, 28176), (832, 26415), (936, 23480), (960, 22893), (1040, 21132), (1170, 18784), (1174, 18720), (1248, 17610), (1440, 15262), (1560, 14088), (1761, 12480), (1872, 11740), (2080, 10566), (2340, 9392), (2348, 9360), (2496, 8805), (2880, 7631), (2935, 7488), (3120, 7044), (3522, 6240), (3744, 5870), (4160, 5283), (4680, 4696)]