21000377038

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{70571}}^1$

素因数の和:70824

約数の個数: 32

約数和(自身を含む): 34145556480

約数和(自身を除く): 13145179442

約数列:

[1, 2, 19, 38, 41, 82, 191, 382, 779, 1558, 3629, 7258, 7831, 15662, 70571, 141142, 148789, 297578, 1340849, 2681698, 2893411, 5786822, 13479061, 26958122, 54974809, 109949618, 256102159, 512204318, 552641501, 1105283002, 10500188519, 21000377038]

約数ペア:

[(1, 21000377038), (2, 10500188519), (19, 1105283002), (38, 552641501), (41, 512204318), (82, 256102159), (191, 109949618), (382, 54974809), (779, 26958122), (1558, 13479061), (3629, 5786822), (7258, 2893411), (7831, 2681698), (15662, 1340849), (70571, 297578), (141142, 148789)]