21904168

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{467}}^1$

素因数の和:538

約数の個数: 64

約数和(自身を含む): 49533120

約数和(自身を除く): 27628952

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 41, 44, 52, 82, 88, 104, 143, 164, 286, 328, 451, 467, 533, 572, 902, 934, 1066, 1144, 1804, 1868, 2132, 3608, 3736, 4264, 5137, 5863, 6071, 10274, 11726, 12142, 19147, 20548, 23452, 24284, 38294, 41096, 46904, 48568, 66781, 76588, 133562, 153176, 210617, 248911, 267124, 421234, 497822, 534248, 842468, 995644, 1684936, 1991288, 2738021, 5476042, 10952084, 21904168]

約数ペア:

[(1, 21904168), (2, 10952084), (4, 5476042), (8, 2738021), (11, 1991288), (13, 1684936), (22, 995644), (26, 842468), (41, 534248), (44, 497822), (52, 421234), (82, 267124), (88, 248911), (104, 210617), (143, 153176), (164, 133562), (286, 76588), (328, 66781), (451, 48568), (467, 46904), (533, 41096), (572, 38294), (902, 24284), (934, 23452), (1066, 20548), (1144, 19147), (1804, 12142), (1868, 11726), (2132, 10274), (3608, 6071), (3736, 5863), (4264, 5137)]