19994008

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{80621}}^1$

素因数の和:80658

約数の個数: 16

約数和(自身を含む): 38698560

約数和(自身を除く): 18704552

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 80621, 161242, 322484, 644968, 2499251, 4998502, 9997004, 19994008]

約数ペア:

[(1, 19994008), (2, 9997004), (4, 4998502), (8, 2499251), (31, 644968), (62, 322484), (124, 161242), (248, 80621)]