21211448

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2633}}^1$

素因数の和:2711

約数の個数: 32

約数和(自身を含む): 42670800

約数和(自身を除く): 21459352

約数列:

[1, 2, 4, 8, 19, 38, 53, 76, 106, 152, 212, 424, 1007, 2014, 2633, 4028, 5266, 8056, 10532, 21064, 50027, 100054, 139549, 200108, 279098, 400216, 558196, 1116392, 2651431, 5302862, 10605724, 21211448]

約数ペア:

[(1, 21211448), (2, 10605724), (4, 5302862), (8, 2651431), (19, 1116392), (38, 558196), (53, 400216), (76, 279098), (106, 200108), (152, 139549), (212, 100054), (424, 50027), (1007, 21064), (2014, 10532), (2633, 8056), (4028, 5266)]