21610920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{2467}}^1$

素因数の和:2554

約数の個数: 64

約数和(自身を含む): 65747520

約数和(自身を除く): 44136600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 73, 120, 146, 219, 292, 365, 438, 584, 730, 876, 1095, 1460, 1752, 2190, 2467, 2920, 4380, 4934, 7401, 8760, 9868, 12335, 14802, 19736, 24670, 29604, 37005, 49340, 59208, 74010, 98680, 148020, 180091, 296040, 360182, 540273, 720364, 900455, 1080546, 1440728, 1800910, 2161092, 2701365, 3601820, 4322184, 5402730, 7203640, 10805460, 21610920]

約数ペア:

[(1, 21610920), (2, 10805460), (3, 7203640), (4, 5402730), (5, 4322184), (6, 3601820), (8, 2701365), (10, 2161092), (12, 1800910), (15, 1440728), (20, 1080546), (24, 900455), (30, 720364), (40, 540273), (60, 360182), (73, 296040), (120, 180091), (146, 148020), (219, 98680), (292, 74010), (365, 59208), (438, 49340), (584, 37005), (730, 29604), (876, 24670), (1095, 19736), (1460, 14802), (1752, 12335), (2190, 9868), (2467, 8760), (2920, 7401), (4380, 4934)]