18572918

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:213

約数の個数: 64

約数和(自身を含む): 37255680

約数和(自身を除く): 18682762

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 41, 82, 91, 131, 133, 182, 247, 262, 266, 287, 494, 533, 574, 779, 917, 1066, 1558, 1703, 1729, 1834, 2489, 3406, 3458, 3731, 4978, 5371, 5453, 7462, 10127, 10742, 10906, 11921, 17423, 20254, 23842, 32357, 34846, 37597, 64714, 69823, 70889, 75194, 102049, 139646, 141778, 204098, 226499, 452998, 488761, 714343, 977522, 1326637, 1428686, 2653274, 9286459, 18572918]

約数ペア:

[(1, 18572918), (2, 9286459), (7, 2653274), (13, 1428686), (14, 1326637), (19, 977522), (26, 714343), (38, 488761), (41, 452998), (82, 226499), (91, 204098), (131, 141778), (133, 139646), (182, 102049), (247, 75194), (262, 70889), (266, 69823), (287, 64714), (494, 37597), (533, 34846), (574, 32357), (779, 23842), (917, 20254), (1066, 17423), (1558, 11921), (1703, 10906), (1729, 10742), (1834, 10127), (2489, 7462), (3406, 5453), (3458, 5371), (3731, 4978)]