21159628

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{44453}}^1$

素因数の和:44481

約数の個数: 24

約数和(自身を含む): 44809632

約数和(自身を除く): 23650004

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 44453, 88906, 177812, 311171, 622342, 755701, 1244684, 1511402, 3022804, 5289907, 10579814, 21159628]

約数ペア:

[(1, 21159628), (2, 10579814), (4, 5289907), (7, 3022804), (14, 1511402), (17, 1244684), (28, 755701), (34, 622342), (68, 311171), (119, 177812), (238, 88906), (476, 44453)]