18244856

素因数分解:

$2^3\times 7^3\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:197

約数の個数: 64

約数和(自身を含む): 40920000

約数和(自身を除く): 22675144

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 61, 98, 109, 122, 196, 218, 244, 343, 392, 427, 436, 488, 686, 763, 854, 872, 1372, 1526, 1708, 2744, 2989, 3052, 3416, 5341, 5978, 6104, 6649, 10682, 11956, 13298, 20923, 21364, 23912, 26596, 37387, 41846, 42728, 46543, 53192, 74774, 83692, 93086, 149548, 167384, 186172, 299096, 325801, 372344, 651602, 1303204, 2280607, 2606408, 4561214, 9122428, 18244856]

約数ペア:

[(1, 18244856), (2, 9122428), (4, 4561214), (7, 2606408), (8, 2280607), (14, 1303204), (28, 651602), (49, 372344), (56, 325801), (61, 299096), (98, 186172), (109, 167384), (122, 149548), (196, 93086), (218, 83692), (244, 74774), (343, 53192), (392, 46543), (427, 42728), (436, 41846), (488, 37387), (686, 26596), (763, 23912), (854, 21364), (872, 20923), (1372, 13298), (1526, 11956), (1708, 10682), (2744, 6649), (2989, 6104), (3052, 5978), (3416, 5341)]