18909008

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{569}}^1$

素因数の和:675

約数の個数: 40

約数和(自身を含む): 38449920

約数和(自身を除く): 19540912

約数列:

[1, 2, 4, 8, 16, 31, 62, 67, 124, 134, 248, 268, 496, 536, 569, 1072, 1138, 2077, 2276, 4154, 4552, 8308, 9104, 16616, 17639, 33232, 35278, 38123, 70556, 76246, 141112, 152492, 282224, 304984, 609968, 1181813, 2363626, 4727252, 9454504, 18909008]

約数ペア:

[(1, 18909008), (2, 9454504), (4, 4727252), (8, 2363626), (16, 1181813), (31, 609968), (62, 304984), (67, 282224), (124, 152492), (134, 141112), (248, 76246), (268, 70556), (496, 38123), (536, 35278), (569, 33232), (1072, 17639), (1138, 16616), (2077, 9104), (2276, 8308), (4154, 4552)]