21755890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{1481}}^1$

素因数の和:1614

約数の個数: 32

約数和(自身を含む): 42574896

約数和(自身を除く): 20819006

約数列:

[1, 2, 5, 10, 13, 26, 65, 113, 130, 226, 565, 1130, 1469, 1481, 2938, 2962, 7345, 7405, 14690, 14810, 19253, 38506, 96265, 167353, 192530, 334706, 836765, 1673530, 2175589, 4351178, 10877945, 21755890]

約数ペア:

[(1, 21755890), (2, 10877945), (5, 4351178), (10, 2175589), (13, 1673530), (26, 836765), (65, 334706), (113, 192530), (130, 167353), (226, 96265), (565, 38506), (1130, 19253), (1469, 14810), (1481, 14690), (2938, 7405), (2962, 7345)]