18746546

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:195

約数の個数: 64

約数和(自身を含む): 37594368

約数和(自身を除く): 18847822

約数列:

[1, 2, 7, 13, 14, 17, 26, 34, 73, 83, 91, 119, 146, 166, 182, 221, 238, 442, 511, 581, 949, 1022, 1079, 1162, 1241, 1411, 1547, 1898, 2158, 2482, 2822, 3094, 6059, 6643, 7553, 8687, 9877, 12118, 13286, 15106, 16133, 17374, 18343, 19754, 32266, 36686, 42413, 78767, 84826, 103003, 112931, 128401, 157534, 206006, 225862, 256802, 551369, 721021, 1102738, 1339039, 1442042, 2678078, 9373273, 18746546]

約数ペア:

[(1, 18746546), (2, 9373273), (7, 2678078), (13, 1442042), (14, 1339039), (17, 1102738), (26, 721021), (34, 551369), (73, 256802), (83, 225862), (91, 206006), (119, 157534), (146, 128401), (166, 112931), (182, 103003), (221, 84826), (238, 78767), (442, 42413), (511, 36686), (581, 32266), (949, 19754), (1022, 18343), (1079, 17374), (1162, 16133), (1241, 15106), (1411, 13286), (1547, 12118), (1898, 9877), (2158, 8687), (2482, 7553), (2822, 6643), (3094, 6059)]