21281412

素因数分解:

$2^2\times 3^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{389}}^1$

素因数の和:540

約数の個数: 48

約数和(自身を含む): 51367680

約数和(自身を除く): 30086268

約数列:

[1, 2, 3, 4, 6, 12, 47, 94, 97, 141, 188, 194, 282, 291, 388, 389, 564, 582, 778, 1164, 1167, 1556, 2334, 4559, 4668, 9118, 13677, 18236, 18283, 27354, 36566, 37733, 54708, 54849, 73132, 75466, 109698, 113199, 150932, 219396, 226398, 452796, 1773451, 3546902, 5320353, 7093804, 10640706, 21281412]

約数ペア:

[(1, 21281412), (2, 10640706), (3, 7093804), (4, 5320353), (6, 3546902), (12, 1773451), (47, 452796), (94, 226398), (97, 219396), (141, 150932), (188, 113199), (194, 109698), (282, 75466), (291, 73132), (388, 54849), (389, 54708), (564, 37733), (582, 36566), (778, 27354), (1164, 18283), (1167, 18236), (1556, 13677), (2334, 9118), (4559, 4668)]