12687885

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{857}}^1$

素因数の和:922

約数の個数: 48

約数和(自身を含む): 25698816

約数和(自身を除く): 13010931

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 47, 63, 105, 141, 235, 315, 329, 423, 705, 857, 987, 1645, 2115, 2571, 2961, 4285, 4935, 5999, 7713, 12855, 14805, 17997, 29995, 38565, 40279, 53991, 89985, 120837, 201395, 269955, 281953, 362511, 604185, 845859, 1409765, 1812555, 2537577, 4229295, 12687885]

約数ペア:

[(1, 12687885), (3, 4229295), (5, 2537577), (7, 1812555), (9, 1409765), (15, 845859), (21, 604185), (35, 362511), (45, 281953), (47, 269955), (63, 201395), (105, 120837), (141, 89985), (235, 53991), (315, 40279), (329, 38565), (423, 29995), (705, 17997), (857, 14805), (987, 12855), (1645, 7713), (2115, 5999), (2571, 4935), (2961, 4285)]