21243786

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{607}}^1$

素因数の和:938

約数の個数: 32

約数和(自身を含む): 44943360

約数和(自身を除く): 23699574

約数列:

[1, 2, 3, 6, 19, 38, 57, 114, 307, 607, 614, 921, 1214, 1821, 1842, 3642, 5833, 11533, 11666, 17499, 23066, 34599, 34998, 69198, 186349, 372698, 559047, 1118094, 3540631, 7081262, 10621893, 21243786]

約数ペア:

[(1, 21243786), (2, 10621893), (3, 7081262), (6, 3540631), (19, 1118094), (38, 559047), (57, 372698), (114, 186349), (307, 69198), (607, 34998), (614, 34599), (921, 23066), (1214, 17499), (1821, 11666), (1842, 11533), (3642, 5833)]