17621940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{41957}}^1$

素因数の和:41976

約数の個数: 48

約数和(自身を含む): 56391552

約数和(自身を除く): 38769612

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 41957, 83914, 125871, 167828, 209785, 251742, 293699, 419570, 503484, 587398, 629355, 839140, 881097, 1174796, 1258710, 1468495, 1762194, 2517420, 2936990, 3524388, 4405485, 5873980, 8810970, 17621940]

約数ペア:

[(1, 17621940), (2, 8810970), (3, 5873980), (4, 4405485), (5, 3524388), (6, 2936990), (7, 2517420), (10, 1762194), (12, 1468495), (14, 1258710), (15, 1174796), (20, 881097), (21, 839140), (28, 629355), (30, 587398), (35, 503484), (42, 419570), (60, 293699), (70, 251742), (84, 209785), (105, 167828), (140, 125871), (210, 83914), (420, 41957)]