21163824

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:487

約数の個数: 120

約数和(自身を含む): 66852864

約数和(自身を除く): 45689040

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 31, 33, 36, 44, 48, 62, 66, 72, 88, 93, 99, 124, 132, 144, 176, 186, 198, 248, 264, 279, 341, 372, 396, 431, 496, 528, 558, 682, 744, 792, 862, 1023, 1116, 1293, 1364, 1488, 1584, 1724, 2046, 2232, 2586, 2728, 3069, 3448, 3879, 4092, 4464, 4741, 5172, 5456, 6138, 6896, 7758, 8184, 9482, 10344, 12276, 13361, 14223, 15516, 16368, 18964, 20688, 24552, 26722, 28446, 31032, 37928, 40083, 42669, 49104, 53444, 56892, 62064, 75856, 80166, 85338, 106888, 113784, 120249, 146971, 160332, 170676, 213776, 227568, 240498, 293942, 320664, 341352, 440913, 480996, 587884, 641328, 682704, 881826, 961992, 1175768, 1322739, 1763652, 1923984, 2351536, 2645478, 3527304, 5290956, 7054608, 10581912, 21163824]

約数ペア:

[(1, 21163824), (2, 10581912), (3, 7054608), (4, 5290956), (6, 3527304), (8, 2645478), (9, 2351536), (11, 1923984), (12, 1763652), (16, 1322739), (18, 1175768), (22, 961992), (24, 881826), (31, 682704), (33, 641328), (36, 587884), (44, 480996), (48, 440913), (62, 341352), (66, 320664), (72, 293942), (88, 240498), (93, 227568), (99, 213776), (124, 170676), (132, 160332), (144, 146971), (176, 120249), (186, 113784), (198, 106888), (248, 85338), (264, 80166), (279, 75856), (341, 62064), (372, 56892), (396, 53444), (431, 49104), (496, 42669), (528, 40083), (558, 37928), (682, 31032), (744, 28446), (792, 26722), (862, 24552), (1023, 20688), (1116, 18964), (1293, 16368), (1364, 15516), (1488, 14223), (1584, 13361), (1724, 12276), (2046, 10344), (2232, 9482), (2586, 8184), (2728, 7758), (3069, 6896), (3448, 6138), (3879, 5456), (4092, 5172), (4464, 4741)]