1621139905

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1609}}^1\times {\mathrm{2617}}^1$

素因数の和:4249

約数の個数: 32

約数和(自身を含む): 2427828480

約数和(自身を除く): 806688575

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 1609, 2617, 8045, 11263, 13085, 17699, 18319, 28787, 56315, 88495, 91595, 123893, 143935, 201509, 619465, 1007545, 4210753, 21053765, 29475271, 46318283, 147376355, 231591415, 324227981, 1621139905]

約数ペア:

[(1, 1621139905), (5, 324227981), (7, 231591415), (11, 147376355), (35, 46318283), (55, 29475271), (77, 21053765), (385, 4210753), (1609, 1007545), (2617, 619465), (8045, 201509), (11263, 143935), (13085, 123893), (17699, 91595), (18319, 88495), (28787, 56315)]