21499866

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^2\times {\mathrm{4133}}^1$

素因数の和:4175

約数の個数: 36

約数和(自身を含む): 49496382

約数和(自身を除く): 27996516

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 289, 306, 578, 867, 1734, 2601, 4133, 5202, 8266, 12399, 24798, 37197, 70261, 74394, 140522, 210783, 421566, 632349, 1194437, 1264698, 2388874, 3583311, 7166622, 10749933, 21499866]

約数ペア:

[(1, 21499866), (2, 10749933), (3, 7166622), (6, 3583311), (9, 2388874), (17, 1264698), (18, 1194437), (34, 632349), (51, 421566), (102, 210783), (153, 140522), (289, 74394), (306, 70261), (578, 37197), (867, 24798), (1734, 12399), (2601, 8266), (4133, 5202)]