21560506

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{41}}^2\times {\mathrm{53}}^1$

素因数の和:159

約数の個数: 36

約数和(自身を含む): 37123758

約数和(自身を除く): 15563252

約数列:

[1, 2, 11, 22, 41, 53, 82, 106, 121, 242, 451, 583, 902, 1166, 1681, 2173, 3362, 4346, 4961, 6413, 9922, 12826, 18491, 23903, 36982, 47806, 89093, 178186, 203401, 262933, 406802, 525866, 980023, 1960046, 10780253, 21560506]

約数ペア:

[(1, 21560506), (2, 10780253), (11, 1960046), (22, 980023), (41, 525866), (53, 406802), (82, 262933), (106, 203401), (121, 178186), (242, 89093), (451, 47806), (583, 36982), (902, 23903), (1166, 18491), (1681, 12826), (2173, 9922), (3362, 6413), (4346, 4961)]