990428751

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{445537}}^1$

素因数の和:445575

約数の個数: 24

約数和(自身を含む): 1621758320

約数和(自身を除く): 631329569

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 445537, 1336611, 4009833, 5791981, 8465203, 17375943, 25395609, 52127829, 76186827, 110047639, 330142917, 990428751]

約数ペア:

[(1, 990428751), (3, 330142917), (9, 110047639), (13, 76186827), (19, 52127829), (39, 25395609), (57, 17375943), (117, 8465203), (171, 5791981), (247, 4009833), (741, 1336611), (2223, 445537)]