21164489216

素因数分解:

$2^9\times {\mathrm{13}}^2\times {\mathrm{244597}}^1$

素因数の和:244641

約数の個数: 60

約数和(自身を含む): 45790946982

約数和(自身を除く): 24626457766

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 169, 208, 256, 338, 416, 512, 676, 832, 1352, 1664, 2704, 3328, 5408, 6656, 10816, 21632, 43264, 86528, 244597, 489194, 978388, 1956776, 3179761, 3913552, 6359522, 7827104, 12719044, 15654208, 25438088, 31308416, 41336893, 50876176, 62616832, 82673786, 101752352, 125233664, 165347572, 203504704, 330695144, 407009408, 661390288, 814018816, 1322780576, 1628037632, 2645561152, 5291122304, 10582244608, 21164489216]

約数ペア:

[(1, 21164489216), (2, 10582244608), (4, 5291122304), (8, 2645561152), (13, 1628037632), (16, 1322780576), (26, 814018816), (32, 661390288), (52, 407009408), (64, 330695144), (104, 203504704), (128, 165347572), (169, 125233664), (208, 101752352), (256, 82673786), (338, 62616832), (416, 50876176), (512, 41336893), (676, 31308416), (832, 25438088), (1352, 15654208), (1664, 12719044), (2704, 7827104), (3328, 6359522), (5408, 3913552), (6656, 3179761), (10816, 1956776), (21632, 978388), (43264, 489194), (86528, 244597)]