21386552

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{12791}}^1$

素因数の和:12827

約数の個数: 32

約数和(自身を含む): 46051200

約数和(自身を除く): 24664648

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672, 12791, 25582, 51164, 102328, 140701, 243029, 281402, 486058, 562804, 972116, 1125608, 1944232, 2673319, 5346638, 10693276, 21386552]

約数ペア:

[(1, 21386552), (2, 10693276), (4, 5346638), (8, 2673319), (11, 1944232), (19, 1125608), (22, 972116), (38, 562804), (44, 486058), (76, 281402), (88, 243029), (152, 140701), (209, 102328), (418, 51164), (836, 25582), (1672, 12791)]