18209488

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{659}}^1$

素因数の和:835

約数の個数: 40

約数和(自身を含む): 38792160

約数和(自身を除く): 20582672

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 157, 176, 314, 628, 659, 1256, 1318, 1727, 2512, 2636, 3454, 5272, 6908, 7249, 10544, 13816, 14498, 27632, 28996, 57992, 103463, 115984, 206926, 413852, 827704, 1138093, 1655408, 2276186, 4552372, 9104744, 18209488]

約数ペア:

[(1, 18209488), (2, 9104744), (4, 4552372), (8, 2276186), (11, 1655408), (16, 1138093), (22, 827704), (44, 413852), (88, 206926), (157, 115984), (176, 103463), (314, 57992), (628, 28996), (659, 27632), (1256, 14498), (1318, 13816), (1727, 10544), (2512, 7249), (2636, 6908), (3454, 5272)]