21489304

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{3821}}^1$

素因数の和:3883

約数の個数: 32

約数和(自身を含む): 43570800

約数和(自身を除く): 22081496

約数列:

[1, 2, 4, 8, 19, 37, 38, 74, 76, 148, 152, 296, 703, 1406, 2812, 3821, 5624, 7642, 15284, 30568, 72599, 141377, 145198, 282754, 290396, 565508, 580792, 1131016, 2686163, 5372326, 10744652, 21489304]

約数ペア:

[(1, 21489304), (2, 10744652), (4, 5372326), (8, 2686163), (19, 1131016), (37, 580792), (38, 565508), (74, 290396), (76, 282754), (148, 145198), (152, 141377), (296, 72599), (703, 30568), (1406, 15284), (2812, 7642), (3821, 5624)]