21057902110

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{4931593}}^1$

素因数の和:4931668

約数の個数: 32

約数和(自身を含む): 44029271232

約数和(自身を除く): 22971369122

約数列:

[1, 2, 5, 7, 10, 14, 35, 61, 70, 122, 305, 427, 610, 854, 2135, 4270, 4931593, 9863186, 24657965, 34521151, 49315930, 69042302, 172605755, 300827173, 345211510, 601654346, 1504135865, 2105790211, 3008271730, 4211580422, 10528951055, 21057902110]

約数ペア:

[(1, 21057902110), (2, 10528951055), (5, 4211580422), (7, 3008271730), (10, 2105790211), (14, 1504135865), (35, 601654346), (61, 345211510), (70, 300827173), (122, 172605755), (305, 69042302), (427, 49315930), (610, 34521151), (854, 24657965), (2135, 9863186), (4270, 4931593)]