21335974

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{51043}}^1$

素因数の和:51075

約数の個数: 16

約数和(自身を含む): 36751680

約数和(自身を除く): 15415706

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 51043, 102086, 561473, 969817, 1122946, 1939634, 10667987, 21335974]

約数ペア:

[(1, 21335974), (2, 10667987), (11, 1939634), (19, 1122946), (22, 969817), (38, 561473), (209, 102086), (418, 51043)]