20916766

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1279}}^1$

素因数の和:1348

約数の個数: 32

約数和(自身を含む): 36771840

約数和(自身を除く): 15855074

約数列:

[1, 2, 13, 17, 26, 34, 37, 74, 221, 442, 481, 629, 962, 1258, 1279, 2558, 8177, 16354, 16627, 21743, 33254, 43486, 47323, 94646, 282659, 565318, 615199, 804491, 1230398, 1608982, 10458383, 20916766]

約数ペア:

[(1, 20916766), (2, 10458383), (13, 1608982), (17, 1230398), (26, 804491), (34, 615199), (37, 565318), (74, 282659), (221, 94646), (442, 47323), (481, 43486), (629, 33254), (962, 21743), (1258, 16627), (1279, 16354), (2558, 8177)]