18981196

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{307}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 38031840

約数和(自身を除く): 19050644

約数列:

[1, 2, 4, 13, 26, 29, 41, 52, 58, 82, 116, 164, 307, 377, 533, 614, 754, 1066, 1189, 1228, 1508, 2132, 2378, 3991, 4756, 7982, 8903, 12587, 15457, 15964, 17806, 25174, 30914, 35612, 50348, 61828, 115739, 163631, 231478, 327262, 365023, 462956, 654524, 730046, 1460092, 4745299, 9490598, 18981196]

約数ペア:

[(1, 18981196), (2, 9490598), (4, 4745299), (13, 1460092), (26, 730046), (29, 654524), (41, 462956), (52, 365023), (58, 327262), (82, 231478), (116, 163631), (164, 115739), (307, 61828), (377, 50348), (533, 35612), (614, 30914), (754, 25174), (1066, 17806), (1189, 15964), (1228, 15457), (1508, 12587), (2132, 8903), (2378, 7982), (3991, 4756)]