21456160

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{167}}^1$

素因数の和:266

約数の個数: 96

約数和(自身を含む): 56391552

約数和(自身を除く): 34935392

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 73, 80, 88, 110, 146, 160, 167, 176, 220, 292, 334, 352, 365, 440, 584, 668, 730, 803, 835, 880, 1168, 1336, 1460, 1606, 1670, 1760, 1837, 2336, 2672, 2920, 3212, 3340, 3674, 4015, 5344, 5840, 6424, 6680, 7348, 8030, 9185, 11680, 12191, 12848, 13360, 14696, 16060, 18370, 24382, 25696, 26720, 29392, 32120, 36740, 48764, 58784, 60955, 64240, 73480, 97528, 121910, 128480, 134101, 146960, 195056, 243820, 268202, 293920, 390112, 487640, 536404, 670505, 975280, 1072808, 1341010, 1950560, 2145616, 2682020, 4291232, 5364040, 10728080, 21456160]

約数ペア:

[(1, 21456160), (2, 10728080), (4, 5364040), (5, 4291232), (8, 2682020), (10, 2145616), (11, 1950560), (16, 1341010), (20, 1072808), (22, 975280), (32, 670505), (40, 536404), (44, 487640), (55, 390112), (73, 293920), (80, 268202), (88, 243820), (110, 195056), (146, 146960), (160, 134101), (167, 128480), (176, 121910), (220, 97528), (292, 73480), (334, 64240), (352, 60955), (365, 58784), (440, 48764), (584, 36740), (668, 32120), (730, 29392), (803, 26720), (835, 25696), (880, 24382), (1168, 18370), (1336, 16060), (1460, 14696), (1606, 13360), (1670, 12848), (1760, 12191), (1837, 11680), (2336, 9185), (2672, 8030), (2920, 7348), (3212, 6680), (3340, 6424), (3674, 5840), (4015, 5344)]