21449560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^2$

素因数の和:133

約数の個数: 96

約数和(自身を含む): 55825200

約数和(自身を除く): 34375640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 40, 41, 44, 55, 58, 82, 88, 110, 116, 145, 164, 205, 220, 232, 290, 319, 328, 410, 440, 451, 580, 638, 820, 902, 1160, 1189, 1276, 1595, 1640, 1681, 1804, 2255, 2378, 2552, 3190, 3362, 3608, 4510, 4756, 5945, 6380, 6724, 8405, 9020, 9512, 11890, 12760, 13079, 13448, 16810, 18040, 18491, 23780, 26158, 33620, 36982, 47560, 48749, 52316, 65395, 67240, 73964, 92455, 97498, 104632, 130790, 147928, 184910, 194996, 243745, 261580, 369820, 389992, 487490, 523160, 536239, 739640, 974980, 1072478, 1949960, 2144956, 2681195, 4289912, 5362390, 10724780, 21449560]

約数ペア:

[(1, 21449560), (2, 10724780), (4, 5362390), (5, 4289912), (8, 2681195), (10, 2144956), (11, 1949960), (20, 1072478), (22, 974980), (29, 739640), (40, 536239), (41, 523160), (44, 487490), (55, 389992), (58, 369820), (82, 261580), (88, 243745), (110, 194996), (116, 184910), (145, 147928), (164, 130790), (205, 104632), (220, 97498), (232, 92455), (290, 73964), (319, 67240), (328, 65395), (410, 52316), (440, 48749), (451, 47560), (580, 36982), (638, 33620), (820, 26158), (902, 23780), (1160, 18491), (1189, 18040), (1276, 16810), (1595, 13448), (1640, 13079), (1681, 12760), (1804, 11890), (2255, 9512), (2378, 9020), (2552, 8405), (3190, 6724), (3362, 6380), (3608, 5945), (4510, 4756)]