18345136

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:341

約数の個数: 40

約数和(自身を含む): 36637040

約数和(自身を除く): 18291904

約数列:

[1, 2, 4, 8, 16, 67, 109, 134, 157, 218, 268, 314, 436, 536, 628, 872, 1072, 1256, 1744, 2512, 7303, 10519, 14606, 17113, 21038, 29212, 34226, 42076, 58424, 68452, 84152, 116848, 136904, 168304, 273808, 1146571, 2293142, 4586284, 9172568, 18345136]

約数ペア:

[(1, 18345136), (2, 9172568), (4, 4586284), (8, 2293142), (16, 1146571), (67, 273808), (109, 168304), (134, 136904), (157, 116848), (218, 84152), (268, 68452), (314, 58424), (436, 42076), (536, 34226), (628, 29212), (872, 21038), (1072, 17113), (1256, 14606), (1744, 10519), (2512, 7303)]