20475198

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{137}}^1$

素因数の和:206

約数の個数: 72

約数和(自身を含む): 49213008

約数和(自身を除く): 28737810

約数列:

[1, 2, 3, 6, 9, 18, 19, 23, 38, 46, 57, 69, 114, 137, 138, 171, 207, 274, 342, 361, 411, 414, 437, 722, 822, 874, 1083, 1233, 1311, 2166, 2466, 2603, 2622, 3151, 3249, 3933, 5206, 6302, 6498, 7809, 7866, 8303, 9453, 15618, 16606, 18906, 23427, 24909, 28359, 46854, 49457, 49818, 56718, 59869, 74727, 98914, 119738, 148371, 149454, 179607, 296742, 359214, 445113, 538821, 890226, 1077642, 1137511, 2275022, 3412533, 6825066, 10237599, 20475198]

約数ペア:

[(1, 20475198), (2, 10237599), (3, 6825066), (6, 3412533), (9, 2275022), (18, 1137511), (19, 1077642), (23, 890226), (38, 538821), (46, 445113), (57, 359214), (69, 296742), (114, 179607), (137, 149454), (138, 148371), (171, 119738), (207, 98914), (274, 74727), (342, 59869), (361, 56718), (411, 49818), (414, 49457), (437, 46854), (722, 28359), (822, 24909), (874, 23427), (1083, 18906), (1233, 16606), (1311, 15618), (2166, 9453), (2466, 8303), (2603, 7866), (2622, 7809), (3151, 6498), (3249, 6302), (3933, 5206)]