21431292

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{1087}}^1$

素因数の和:1178

約数の個数: 48

約数和(自身を含む): 52641792

約数和(自身を除く): 31210500

約数列:

[1, 2, 3, 4, 6, 12, 31, 53, 62, 93, 106, 124, 159, 186, 212, 318, 372, 636, 1087, 1643, 2174, 3261, 3286, 4348, 4929, 6522, 6572, 9858, 13044, 19716, 33697, 57611, 67394, 101091, 115222, 134788, 172833, 202182, 230444, 345666, 404364, 691332, 1785941, 3571882, 5357823, 7143764, 10715646, 21431292]

約数ペア:

[(1, 21431292), (2, 10715646), (3, 7143764), (4, 5357823), (6, 3571882), (12, 1785941), (31, 691332), (53, 404364), (62, 345666), (93, 230444), (106, 202182), (124, 172833), (159, 134788), (186, 115222), (212, 101091), (318, 67394), (372, 57611), (636, 33697), (1087, 19716), (1643, 13044), (2174, 9858), (3261, 6572), (3286, 6522), (4348, 4929)]