21856770

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{479}}^1$

素因数の和:521

約数の個数: 96

約数和(自身を含む): 63244800

約数和(自身を除く): 41388030

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 65, 78, 90, 117, 130, 135, 169, 195, 234, 270, 338, 351, 390, 479, 507, 585, 702, 845, 958, 1014, 1170, 1437, 1521, 1690, 1755, 2395, 2535, 2874, 3042, 3510, 4311, 4563, 4790, 5070, 6227, 7185, 7605, 8622, 9126, 12454, 12933, 14370, 15210, 18681, 21555, 22815, 25866, 31135, 37362, 43110, 45630, 56043, 62270, 64665, 80951, 93405, 112086, 129330, 161902, 168129, 186810, 242853, 280215, 336258, 404755, 485706, 560430, 728559, 809510, 840645, 1214265, 1457118, 1681290, 2185677, 2428530, 3642795, 4371354, 7285590, 10928385, 21856770]

約数ペア:

[(1, 21856770), (2, 10928385), (3, 7285590), (5, 4371354), (6, 3642795), (9, 2428530), (10, 2185677), (13, 1681290), (15, 1457118), (18, 1214265), (26, 840645), (27, 809510), (30, 728559), (39, 560430), (45, 485706), (54, 404755), (65, 336258), (78, 280215), (90, 242853), (117, 186810), (130, 168129), (135, 161902), (169, 129330), (195, 112086), (234, 93405), (270, 80951), (338, 64665), (351, 62270), (390, 56043), (479, 45630), (507, 43110), (585, 37362), (702, 31135), (845, 25866), (958, 22815), (1014, 21555), (1170, 18681), (1437, 15210), (1521, 14370), (1690, 12933), (1755, 12454), (2395, 9126), (2535, 8622), (2874, 7605), (3042, 7185), (3510, 6227), (4311, 5070), (4563, 4790)]