21204678

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{18899}}^1$

素因数の和:18932

約数の個数: 32

約数和(自身を含む): 48988800

約数和(自身を除く): 27784122

約数列:

[1, 2, 3, 6, 11, 17, 22, 33, 34, 51, 66, 102, 187, 374, 561, 1122, 18899, 37798, 56697, 113394, 207889, 321283, 415778, 623667, 642566, 963849, 1247334, 1927698, 3534113, 7068226, 10602339, 21204678]

約数ペア:

[(1, 21204678), (2, 10602339), (3, 7068226), (6, 3534113), (11, 1927698), (17, 1247334), (22, 963849), (33, 642566), (34, 623667), (51, 415778), (66, 321283), (102, 207889), (187, 113394), (374, 56697), (561, 37798), (1122, 18899)]