17918992

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1$

素因数の和:456

約数の個数: 80

約数和(自身を含む): 44219392

約数和(自身を除く): 26300400

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 52, 56, 62, 91, 104, 112, 124, 182, 208, 217, 248, 364, 397, 403, 434, 496, 728, 794, 806, 868, 1456, 1588, 1612, 1736, 2779, 2821, 3176, 3224, 3472, 5161, 5558, 5642, 6352, 6448, 10322, 11116, 11284, 12307, 20644, 22232, 22568, 24614, 36127, 41288, 44464, 45136, 49228, 72254, 82576, 86149, 98456, 144508, 159991, 172298, 196912, 289016, 319982, 344596, 578032, 639964, 689192, 1119937, 1279928, 1378384, 2239874, 2559856, 4479748, 8959496, 17918992]

約数ペア:

[(1, 17918992), (2, 8959496), (4, 4479748), (7, 2559856), (8, 2239874), (13, 1378384), (14, 1279928), (16, 1119937), (26, 689192), (28, 639964), (31, 578032), (52, 344596), (56, 319982), (62, 289016), (91, 196912), (104, 172298), (112, 159991), (124, 144508), (182, 98456), (208, 86149), (217, 82576), (248, 72254), (364, 49228), (397, 45136), (403, 44464), (434, 41288), (496, 36127), (728, 24614), (794, 22568), (806, 22232), (868, 20644), (1456, 12307), (1588, 11284), (1612, 11116), (1736, 10322), (2779, 6448), (2821, 6352), (3176, 5642), (3224, 5558), (3472, 5161)]