18556784

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{277}}^1$

素因数の和:417

約数の個数: 40

約数和(自身を含む): 37229760

約数和(自身を除く): 18672976

約数列:

[1, 2, 4, 8, 16, 53, 79, 106, 158, 212, 277, 316, 424, 554, 632, 848, 1108, 1264, 2216, 4187, 4432, 8374, 14681, 16748, 21883, 29362, 33496, 43766, 58724, 66992, 87532, 117448, 175064, 234896, 350128, 1159799, 2319598, 4639196, 9278392, 18556784]

約数ペア:

[(1, 18556784), (2, 9278392), (4, 4639196), (8, 2319598), (16, 1159799), (53, 350128), (79, 234896), (106, 175064), (158, 117448), (212, 87532), (277, 66992), (316, 58724), (424, 43766), (554, 33496), (632, 29362), (848, 21883), (1108, 16748), (1264, 14681), (2216, 8374), (4187, 4432)]