21284250

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:129

約数の個数: 128

約数和(自身を含む): 59754240

約数和(自身を除く): 38469990

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 37, 39, 50, 59, 65, 74, 75, 78, 111, 118, 125, 130, 150, 177, 185, 195, 222, 250, 295, 325, 354, 370, 375, 390, 481, 555, 590, 650, 750, 767, 885, 925, 962, 975, 1110, 1443, 1475, 1534, 1625, 1770, 1850, 1950, 2183, 2301, 2405, 2775, 2886, 2950, 3250, 3835, 4366, 4425, 4602, 4625, 4810, 4875, 5550, 6549, 7215, 7375, 7670, 8850, 9250, 9750, 10915, 11505, 12025, 13098, 13875, 14430, 14750, 19175, 21830, 22125, 23010, 24050, 27750, 28379, 32745, 36075, 38350, 44250, 54575, 56758, 57525, 60125, 65490, 72150, 85137, 95875, 109150, 115050, 120250, 141895, 163725, 170274, 180375, 191750, 272875, 283790, 287625, 327450, 360750, 425685, 545750, 575250, 709475, 818625, 851370, 1418950, 1637250, 2128425, 3547375, 4256850, 7094750, 10642125, 21284250]

約数ペア:

[(1, 21284250), (2, 10642125), (3, 7094750), (5, 4256850), (6, 3547375), (10, 2128425), (13, 1637250), (15, 1418950), (25, 851370), (26, 818625), (30, 709475), (37, 575250), (39, 545750), (50, 425685), (59, 360750), (65, 327450), (74, 287625), (75, 283790), (78, 272875), (111, 191750), (118, 180375), (125, 170274), (130, 163725), (150, 141895), (177, 120250), (185, 115050), (195, 109150), (222, 95875), (250, 85137), (295, 72150), (325, 65490), (354, 60125), (370, 57525), (375, 56758), (390, 54575), (481, 44250), (555, 38350), (590, 36075), (650, 32745), (750, 28379), (767, 27750), (885, 24050), (925, 23010), (962, 22125), (975, 21830), (1110, 19175), (1443, 14750), (1475, 14430), (1534, 13875), (1625, 13098), (1770, 12025), (1850, 11505), (1950, 10915), (2183, 9750), (2301, 9250), (2405, 8850), (2775, 7670), (2886, 7375), (2950, 7215), (3250, 6549), (3835, 5550), (4366, 4875), (4425, 4810), (4602, 4625)]