18493784

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1453}}^1$

素因数の和:1539

約数の個数: 32

約数和(自身を含む): 36466320

約数和(自身を除く): 17972536

約数列:

[1, 2, 4, 8, 37, 43, 74, 86, 148, 172, 296, 344, 1453, 1591, 2906, 3182, 5812, 6364, 11624, 12728, 53761, 62479, 107522, 124958, 215044, 249916, 430088, 499832, 2311723, 4623446, 9246892, 18493784]

約数ペア:

[(1, 18493784), (2, 9246892), (4, 4623446), (8, 2311723), (37, 499832), (43, 430088), (74, 249916), (86, 215044), (148, 124958), (172, 107522), (296, 62479), (344, 53761), (1453, 12728), (1591, 11624), (2906, 6364), (3182, 5812)]