420997918

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{4441}}^1$

素因数の和:4624

約数の個数: 32

約数和(自身を含む): 716405760

約数和(自身を除く): 295407842

約数列:

[1, 2, 11, 22, 31, 62, 139, 278, 341, 682, 1529, 3058, 4309, 4441, 8618, 8882, 47399, 48851, 94798, 97702, 137671, 275342, 617299, 1234598, 1514381, 3028762, 6790289, 13580578, 19136269, 38272538, 210498959, 420997918]

約数ペア:

[(1, 420997918), (2, 210498959), (11, 38272538), (22, 19136269), (31, 13580578), (62, 6790289), (139, 3028762), (278, 1514381), (341, 1234598), (682, 617299), (1529, 275342), (3058, 137671), (4309, 97702), (4441, 94798), (8618, 48851), (8882, 47399)]