18261568

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{467}}^1$

素因数の和:539

約数の個数: 56

約数和(自身を含む): 39940992

約数和(自身を除く): 21679424

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 47, 52, 64, 94, 104, 188, 208, 376, 416, 467, 611, 752, 832, 934, 1222, 1504, 1868, 2444, 3008, 3736, 4888, 6071, 7472, 9776, 12142, 14944, 19552, 21949, 24284, 29888, 39104, 43898, 48568, 87796, 97136, 175592, 194272, 285337, 351184, 388544, 570674, 702368, 1141348, 1404736, 2282696, 4565392, 9130784, 18261568]

約数ペア:

[(1, 18261568), (2, 9130784), (4, 4565392), (8, 2282696), (13, 1404736), (16, 1141348), (26, 702368), (32, 570674), (47, 388544), (52, 351184), (64, 285337), (94, 194272), (104, 175592), (188, 97136), (208, 87796), (376, 48568), (416, 43898), (467, 39104), (611, 29888), (752, 24284), (832, 21949), (934, 19552), (1222, 14944), (1504, 12142), (1868, 9776), (2444, 7472), (3008, 6071), (3736, 4888)]