21013680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{87557}}^1$

素因数の和:87573

約数の個数: 40

約数和(自身を含む): 65143152

約数和(自身を除く): 44129472

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 87557, 175114, 262671, 350228, 437785, 525342, 700456, 875570, 1050684, 1313355, 1400912, 1751140, 2101368, 2626710, 3502280, 4202736, 5253420, 7004560, 10506840, 21013680]

約数ペア:

[(1, 21013680), (2, 10506840), (3, 7004560), (4, 5253420), (5, 4202736), (6, 3502280), (8, 2626710), (10, 2101368), (12, 1751140), (15, 1400912), (16, 1313355), (20, 1050684), (24, 875570), (30, 700456), (40, 525342), (48, 437785), (60, 350228), (80, 262671), (120, 175114), (240, 87557)]