21861086

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{263}}^1$

素因数の和:440

約数の個数: 32

約数和(自身を含む): 37255680

約数和(自身を除く): 15394594

約数列:

[1, 2, 13, 23, 26, 46, 139, 263, 278, 299, 526, 598, 1807, 3197, 3419, 3614, 6049, 6394, 6838, 12098, 36557, 41561, 73114, 78637, 83122, 157274, 475241, 840811, 950482, 1681622, 10930543, 21861086]

約数ペア:

[(1, 21861086), (2, 10930543), (13, 1681622), (23, 950482), (26, 840811), (46, 475241), (139, 157274), (263, 83122), (278, 78637), (299, 73114), (526, 41561), (598, 36557), (1807, 12098), (3197, 6838), (3419, 6394), (3614, 6049)]