21151218

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{167}}^1$

素因数の和:303

約数の個数: 64

約数和(自身を含む): 49351680

約数和(自身を除く): 28200462

約数列:

[1, 2, 3, 6, 11, 19, 22, 33, 38, 57, 66, 101, 114, 167, 202, 209, 303, 334, 418, 501, 606, 627, 1002, 1111, 1254, 1837, 1919, 2222, 3173, 3333, 3674, 3838, 5511, 5757, 6346, 6666, 9519, 11022, 11514, 16867, 19038, 21109, 33734, 34903, 42218, 50601, 63327, 69806, 101202, 104709, 126654, 185537, 209418, 320473, 371074, 556611, 640946, 961419, 1113222, 1922838, 3525203, 7050406, 10575609, 21151218]

約数ペア:

[(1, 21151218), (2, 10575609), (3, 7050406), (6, 3525203), (11, 1922838), (19, 1113222), (22, 961419), (33, 640946), (38, 556611), (57, 371074), (66, 320473), (101, 209418), (114, 185537), (167, 126654), (202, 104709), (209, 101202), (303, 69806), (334, 63327), (418, 50601), (501, 42218), (606, 34903), (627, 33734), (1002, 21109), (1111, 19038), (1254, 16867), (1837, 11514), (1919, 11022), (2222, 9519), (3173, 6666), (3333, 6346), (3674, 5757), (3838, 5511)]