18879406

素因数分解:

$2^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1$

素因数の和:138

約数の個数: 64

約数和(自身を含む): 37296000

約数和(自身を除く): 18416594

約数列:

[1, 2, 7, 13, 14, 26, 29, 49, 58, 73, 91, 98, 146, 182, 203, 343, 377, 406, 511, 637, 686, 754, 949, 1022, 1274, 1421, 1898, 2117, 2639, 2842, 3577, 4234, 4459, 5278, 6643, 7154, 8918, 9947, 13286, 14819, 18473, 19894, 25039, 27521, 29638, 36946, 46501, 50078, 55042, 93002, 103733, 129311, 192647, 207466, 258622, 325507, 385294, 651014, 726131, 1348529, 1452262, 2697058, 9439703, 18879406]

約数ペア:

[(1, 18879406), (2, 9439703), (7, 2697058), (13, 1452262), (14, 1348529), (26, 726131), (29, 651014), (49, 385294), (58, 325507), (73, 258622), (91, 207466), (98, 192647), (146, 129311), (182, 103733), (203, 93002), (343, 55042), (377, 50078), (406, 46501), (511, 36946), (637, 29638), (686, 27521), (754, 25039), (949, 19894), (1022, 18473), (1274, 14819), (1421, 13286), (1898, 9947), (2117, 8918), (2639, 7154), (2842, 6643), (3577, 5278), (4234, 4459)]