21000836330

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{211}}^1\times {\mathrm{457}}^1\times {\mathrm{751}}^1$

素因数の和:1455

約数の個数: 64

約数和(自身を含む): 39428743680

約数和(自身を除く): 18427907350

約数列:

[1, 2, 5, 10, 29, 58, 145, 211, 290, 422, 457, 751, 914, 1055, 1502, 2110, 2285, 3755, 4570, 6119, 7510, 12238, 13253, 21779, 26506, 30595, 43558, 61190, 66265, 96427, 108895, 132530, 158461, 192854, 217790, 316922, 343207, 482135, 686414, 792305, 964270, 1584610, 1716035, 2796383, 3432070, 4595369, 5592766, 9190738, 9953003, 13981915, 19906006, 22976845, 27963830, 45953690, 49765015, 72416677, 99530030, 144833354, 362083385, 724166770, 2100083633, 4200167266, 10500418165, 21000836330]

約数ペア:

[(1, 21000836330), (2, 10500418165), (5, 4200167266), (10, 2100083633), (29, 724166770), (58, 362083385), (145, 144833354), (211, 99530030), (290, 72416677), (422, 49765015), (457, 45953690), (751, 27963830), (914, 22976845), (1055, 19906006), (1502, 13981915), (2110, 9953003), (2285, 9190738), (3755, 5592766), (4570, 4595369), (6119, 3432070), (7510, 2796383), (12238, 1716035), (13253, 1584610), (21779, 964270), (26506, 792305), (30595, 686414), (43558, 482135), (61190, 343207), (66265, 316922), (96427, 217790), (108895, 192854), (132530, 158461)]