21360218

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{373}}^1$

素因数の和:542

約数の個数: 32

約数和(自身を含む): 37160640

約数和(自身を除く): 15800422

約数列:

[1, 2, 11, 19, 22, 38, 137, 209, 274, 373, 418, 746, 1507, 2603, 3014, 4103, 5206, 7087, 8206, 14174, 28633, 51101, 57266, 77957, 102202, 155914, 562111, 970919, 1124222, 1941838, 10680109, 21360218]

約数ペア:

[(1, 21360218), (2, 10680109), (11, 1941838), (19, 1124222), (22, 970919), (38, 562111), (137, 155914), (209, 102202), (274, 77957), (373, 57266), (418, 51101), (746, 28633), (1507, 14174), (2603, 8206), (3014, 7087), (4103, 5206)]