21877372

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 43545600

約数和(自身を除く): 21668228

約数列:

[1, 2, 4, 11, 22, 44, 47, 71, 94, 142, 149, 188, 284, 298, 517, 596, 781, 1034, 1562, 1639, 2068, 3124, 3278, 3337, 6556, 6674, 7003, 10579, 13348, 14006, 21158, 28012, 36707, 42316, 73414, 77033, 116369, 146828, 154066, 232738, 308132, 465476, 497213, 994426, 1988852, 5469343, 10938686, 21877372]

約数ペア:

[(1, 21877372), (2, 10938686), (4, 5469343), (11, 1988852), (22, 994426), (44, 497213), (47, 465476), (71, 308132), (94, 232738), (142, 154066), (149, 146828), (188, 116369), (284, 77033), (298, 73414), (517, 42316), (596, 36707), (781, 28012), (1034, 21158), (1562, 14006), (1639, 13348), (2068, 10579), (3124, 7003), (3278, 6674), (3337, 6556)]