21806512

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{881}}^1$

素因数の和:926

約数の個数: 80

約数和(自身を含む): 55121472

約数和(自身を除く): 33314960

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 17, 26, 28, 34, 52, 56, 68, 91, 104, 112, 119, 136, 182, 208, 221, 238, 272, 364, 442, 476, 728, 881, 884, 952, 1456, 1547, 1762, 1768, 1904, 3094, 3524, 3536, 6167, 6188, 7048, 11453, 12334, 12376, 14096, 14977, 22906, 24668, 24752, 29954, 45812, 49336, 59908, 80171, 91624, 98672, 104839, 119816, 160342, 183248, 194701, 209678, 239632, 320684, 389402, 419356, 641368, 778804, 838712, 1282736, 1362907, 1557608, 1677424, 2725814, 3115216, 5451628, 10903256, 21806512]

約数ペア:

[(1, 21806512), (2, 10903256), (4, 5451628), (7, 3115216), (8, 2725814), (13, 1677424), (14, 1557608), (16, 1362907), (17, 1282736), (26, 838712), (28, 778804), (34, 641368), (52, 419356), (56, 389402), (68, 320684), (91, 239632), (104, 209678), (112, 194701), (119, 183248), (136, 160342), (182, 119816), (208, 104839), (221, 98672), (238, 91624), (272, 80171), (364, 59908), (442, 49336), (476, 45812), (728, 29954), (881, 24752), (884, 24668), (952, 22906), (1456, 14977), (1547, 14096), (1762, 12376), (1768, 12334), (1904, 11453), (3094, 7048), (3524, 6188), (3536, 6167)]