21347898

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{179}}^1$

素因数の和:347

約数の個数: 64

約数和(自身を含む): 50803200

約数和(自身を除く): 29455302

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 139, 143, 179, 278, 286, 358, 417, 429, 537, 834, 858, 1074, 1529, 1807, 1969, 2327, 3058, 3614, 3938, 4587, 4654, 5421, 5907, 6981, 9174, 10842, 11814, 13962, 19877, 24881, 25597, 39754, 49762, 51194, 59631, 74643, 76791, 119262, 149286, 153582, 273691, 323453, 547382, 646906, 821073, 970359, 1642146, 1940718, 3557983, 7115966, 10673949, 21347898]

約数ペア:

[(1, 21347898), (2, 10673949), (3, 7115966), (6, 3557983), (11, 1940718), (13, 1642146), (22, 970359), (26, 821073), (33, 646906), (39, 547382), (66, 323453), (78, 273691), (139, 153582), (143, 149286), (179, 119262), (278, 76791), (286, 74643), (358, 59631), (417, 51194), (429, 49762), (537, 39754), (834, 25597), (858, 24881), (1074, 19877), (1529, 13962), (1807, 11814), (1969, 10842), (2327, 9174), (3058, 6981), (3614, 5907), (3938, 5421), (4587, 4654)]