21219691376

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{7847519}}^1$

素因数の和:7847553

約数の個数: 30

約数和(自身を含む): 44518980960

約数和(自身を除く): 23299289584

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 676, 1352, 2704, 7847519, 15695038, 31390076, 62780152, 102017747, 125560304, 204035494, 408070988, 816141976, 1326230711, 1632283952, 2652461422, 5304922844, 10609845688, 21219691376]

約数ペア:

[(1, 21219691376), (2, 10609845688), (4, 5304922844), (8, 2652461422), (13, 1632283952), (16, 1326230711), (26, 816141976), (52, 408070988), (104, 204035494), (169, 125560304), (208, 102017747), (338, 62780152), (676, 31390076), (1352, 15695038), (2704, 7847519)]