21000605360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{165203}}^1$

素因数の和:165450

約数の個数: 80

約数和(自身を含む): 56047769856

約数和(自身を除く): 35047164496

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 227, 280, 454, 560, 908, 1135, 1589, 1816, 2270, 3178, 3632, 4540, 6356, 7945, 9080, 12712, 15890, 18160, 25424, 31780, 63560, 127120, 165203, 330406, 660812, 826015, 1156421, 1321624, 1652030, 2312842, 2643248, 3304060, 4625684, 5782105, 6608120, 9251368, 11564210, 13216240, 18502736, 23128420, 37501081, 46256840, 75002162, 92513680, 150004324, 187505405, 262507567, 300008648, 375010810, 525015134, 600017296, 750021620, 1050030268, 1312537835, 1500043240, 2100060536, 2625075670, 3000086480, 4200121072, 5250151340, 10500302680, 21000605360]

約数ペア:

[(1, 21000605360), (2, 10500302680), (4, 5250151340), (5, 4200121072), (7, 3000086480), (8, 2625075670), (10, 2100060536), (14, 1500043240), (16, 1312537835), (20, 1050030268), (28, 750021620), (35, 600017296), (40, 525015134), (56, 375010810), (70, 300008648), (80, 262507567), (112, 187505405), (140, 150004324), (227, 92513680), (280, 75002162), (454, 46256840), (560, 37501081), (908, 23128420), (1135, 18502736), (1589, 13216240), (1816, 11564210), (2270, 9251368), (3178, 6608120), (3632, 5782105), (4540, 4625684), (6356, 3304060), (7945, 2643248), (9080, 2312842), (12712, 1652030), (15890, 1321624), (18160, 1156421), (25424, 826015), (31780, 660812), (63560, 330406), (127120, 165203)]