21097384

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1181}}^1$

素因数の和:1234

約数の個数: 64

約数和(自身を含む): 51062400

約数和(自身を除く): 29965016

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 29, 44, 56, 58, 77, 88, 116, 154, 203, 232, 308, 319, 406, 616, 638, 812, 1181, 1276, 1624, 2233, 2362, 2552, 4466, 4724, 8267, 8932, 9448, 12991, 16534, 17864, 25982, 33068, 34249, 51964, 66136, 68498, 90937, 103928, 136996, 181874, 239743, 273992, 363748, 376739, 479486, 727496, 753478, 958972, 1506956, 1917944, 2637173, 3013912, 5274346, 10548692, 21097384]

約数ペア:

[(1, 21097384), (2, 10548692), (4, 5274346), (7, 3013912), (8, 2637173), (11, 1917944), (14, 1506956), (22, 958972), (28, 753478), (29, 727496), (44, 479486), (56, 376739), (58, 363748), (77, 273992), (88, 239743), (116, 181874), (154, 136996), (203, 103928), (232, 90937), (308, 68498), (319, 66136), (406, 51964), (616, 34249), (638, 33068), (812, 25982), (1181, 17864), (1276, 16534), (1624, 12991), (2233, 9448), (2362, 8932), (2552, 8267), (4466, 4724)]