20961798

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{2221}}^1$

素因数の和:2261

約数の個数: 48

約数和(自身を含む): 49648368

約数和(自身を除く): 28686570

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 121, 143, 242, 286, 363, 429, 726, 858, 1573, 2221, 3146, 4442, 4719, 6663, 9438, 13326, 24431, 28873, 48862, 57746, 73293, 86619, 146586, 173238, 268741, 317603, 537482, 635206, 806223, 952809, 1612446, 1905618, 3493633, 6987266, 10480899, 20961798]

約数ペア:

[(1, 20961798), (2, 10480899), (3, 6987266), (6, 3493633), (11, 1905618), (13, 1612446), (22, 952809), (26, 806223), (33, 635206), (39, 537482), (66, 317603), (78, 268741), (121, 173238), (143, 146586), (242, 86619), (286, 73293), (363, 57746), (429, 48862), (726, 28873), (858, 24431), (1573, 13326), (2221, 9438), (3146, 6663), (4442, 4719)]