21317100

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{10151}}^1$

素因数の和:10175

約数の個数: 72

約数和(自身を含む): 70495488

約数和(自身を除く): 49178388

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 140, 150, 175, 210, 300, 350, 420, 525, 700, 1050, 2100, 10151, 20302, 30453, 40604, 50755, 60906, 71057, 101510, 121812, 142114, 152265, 203020, 213171, 253775, 284228, 304530, 355285, 426342, 507550, 609060, 710570, 761325, 852684, 1015100, 1065855, 1421140, 1522650, 1776425, 2131710, 3045300, 3552850, 4263420, 5329275, 7105700, 10658550, 21317100]

約数ペア:

[(1, 21317100), (2, 10658550), (3, 7105700), (4, 5329275), (5, 4263420), (6, 3552850), (7, 3045300), (10, 2131710), (12, 1776425), (14, 1522650), (15, 1421140), (20, 1065855), (21, 1015100), (25, 852684), (28, 761325), (30, 710570), (35, 609060), (42, 507550), (50, 426342), (60, 355285), (70, 304530), (75, 284228), (84, 253775), (100, 213171), (105, 203020), (140, 152265), (150, 142114), (175, 121812), (210, 101510), (300, 71057), (350, 60906), (420, 50755), (525, 40604), (700, 30453), (1050, 20302), (2100, 10151)]