19774870

素因数分解:

$2^1\times 5^1\times {\mathrm{271}}^1\times {\mathrm{7297}}^1$

素因数の和:7575

約数の個数: 16

約数和(自身を含む): 35731008

約数和(自身を除く): 15956138

約数列:

[1, 2, 5, 10, 271, 542, 1355, 2710, 7297, 14594, 36485, 72970, 1977487, 3954974, 9887435, 19774870]

約数ペア:

[(1, 19774870), (2, 9887435), (5, 3954974), (10, 1977487), (271, 72970), (542, 36485), (1355, 14594), (2710, 7297)]