21298021234

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{260807}}^1$

素因数の和:261142

約数の個数: 32

約数和(自身を含む): 38557854720

約数和(自身を除く): 17259833486

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 307, 614, 2149, 4298, 5833, 11666, 40831, 81662, 260807, 521614, 1825649, 3651298, 4955333, 9910666, 34687331, 69374662, 80067749, 160135498, 560474243, 1120948486, 1521287231, 3042574462, 10649010617, 21298021234]

約数ペア:

[(1, 21298021234), (2, 10649010617), (7, 3042574462), (14, 1521287231), (19, 1120948486), (38, 560474243), (133, 160135498), (266, 80067749), (307, 69374662), (614, 34687331), (2149, 9910666), (4298, 4955333), (5833, 3651298), (11666, 1825649), (40831, 521614), (81662, 260807)]