21000453608

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1267531}}^1$

素因数の和:1267665

約数の個数: 32

約数和(自身を含む): 41828556000

約数和(自身を除く): 20828102392

約数列:

[1, 2, 4, 8, 19, 38, 76, 109, 152, 218, 436, 872, 2071, 4142, 8284, 16568, 1267531, 2535062, 5070124, 10140248, 24083089, 48166178, 96332356, 138160879, 192664712, 276321758, 552643516, 1105287032, 2625056701, 5250113402, 10500226804, 21000453608]

約数ペア:

[(1, 21000453608), (2, 10500226804), (4, 5250113402), (8, 2625056701), (19, 1105287032), (38, 552643516), (76, 276321758), (109, 192664712), (152, 138160879), (218, 96332356), (436, 48166178), (872, 24083089), (2071, 10140248), (4142, 5070124), (8284, 2535062), (16568, 1267531)]