21754316

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{1453}}^1$

素因数の和:1673

約数の個数: 24

約数和(自身を含む): 40304880

約数和(自身を除く): 18550564

約数列:

[1, 2, 4, 19, 38, 76, 197, 394, 788, 1453, 2906, 3743, 5812, 7486, 14972, 27607, 55214, 110428, 286241, 572482, 1144964, 5438579, 10877158, 21754316]

約数ペア:

[(1, 21754316), (2, 10877158), (4, 5438579), (19, 1144964), (38, 572482), (76, 286241), (197, 110428), (394, 55214), (788, 27607), (1453, 14972), (2906, 7486), (3743, 5812)]