19910366

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:106

約数の個数: 72

約数和(自身を含む): 39897720

約数和(自身を除く): 19987354

約数列:

[1, 2, 7, 14, 17, 19, 34, 37, 38, 49, 74, 98, 119, 133, 238, 259, 266, 289, 323, 518, 578, 629, 646, 703, 833, 931, 1258, 1406, 1666, 1813, 1862, 2023, 2261, 3626, 4046, 4403, 4522, 4921, 5491, 8806, 9842, 10693, 10982, 11951, 14161, 15827, 21386, 23902, 28322, 30821, 31654, 34447, 38437, 61642, 68894, 74851, 76874, 83657, 149702, 167314, 203167, 269059, 406334, 523957, 538118, 585599, 1047914, 1171198, 1422169, 2844338, 9955183, 19910366]

約数ペア:

[(1, 19910366), (2, 9955183), (7, 2844338), (14, 1422169), (17, 1171198), (19, 1047914), (34, 585599), (37, 538118), (38, 523957), (49, 406334), (74, 269059), (98, 203167), (119, 167314), (133, 149702), (238, 83657), (259, 76874), (266, 74851), (289, 68894), (323, 61642), (518, 38437), (578, 34447), (629, 31654), (646, 30821), (703, 28322), (833, 23902), (931, 21386), (1258, 15827), (1406, 14161), (1666, 11951), (1813, 10982), (1862, 10693), (2023, 9842), (2261, 8806), (3626, 5491), (4046, 4921), (4403, 4522)]