21204996

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{293}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 51301824

約数和(自身を除く): 30096828

約数列:

[1, 2, 3, 4, 6, 12, 37, 74, 111, 148, 163, 222, 293, 326, 444, 489, 586, 652, 879, 978, 1172, 1758, 1956, 3516, 6031, 10841, 12062, 18093, 21682, 24124, 32523, 36186, 43364, 47759, 65046, 72372, 95518, 130092, 143277, 191036, 286554, 573108, 1767083, 3534166, 5301249, 7068332, 10602498, 21204996]

約数ペア:

[(1, 21204996), (2, 10602498), (3, 7068332), (4, 5301249), (6, 3534166), (12, 1767083), (37, 573108), (74, 286554), (111, 191036), (148, 143277), (163, 130092), (222, 95518), (293, 72372), (326, 65046), (444, 47759), (489, 43364), (586, 36186), (652, 32523), (879, 24124), (978, 21682), (1172, 18093), (1758, 12062), (1956, 10841), (3516, 6031)]