21887360

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3109}}^1$

素因数の和:3139

約数の個数: 64

約数和(自身を含む): 57099600

約数和(自身を除く): 35212240

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 320, 352, 440, 640, 704, 880, 1408, 1760, 3109, 3520, 6218, 7040, 12436, 15545, 24872, 31090, 34199, 49744, 62180, 68398, 99488, 124360, 136796, 170995, 198976, 248720, 273592, 341990, 397952, 497440, 547184, 683980, 994880, 1094368, 1367960, 1989760, 2188736, 2735920, 4377472, 5471840, 10943680, 21887360]

約数ペア:

[(1, 21887360), (2, 10943680), (4, 5471840), (5, 4377472), (8, 2735920), (10, 2188736), (11, 1989760), (16, 1367960), (20, 1094368), (22, 994880), (32, 683980), (40, 547184), (44, 497440), (55, 397952), (64, 341990), (80, 273592), (88, 248720), (110, 198976), (128, 170995), (160, 136796), (176, 124360), (220, 99488), (320, 68398), (352, 62180), (440, 49744), (640, 34199), (704, 31090), (880, 24872), (1408, 15545), (1760, 12436), (3109, 7040), (3520, 6218)]