18505904

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:357

約数の個数: 40

約数和(自身を含む): 37028880

約数和(自身を除く): 18522976

約数列:

[1, 2, 4, 8, 16, 53, 106, 139, 157, 212, 278, 314, 424, 556, 628, 848, 1112, 1256, 2224, 2512, 7367, 8321, 14734, 16642, 21823, 29468, 33284, 43646, 58936, 66568, 87292, 117872, 133136, 174584, 349168, 1156619, 2313238, 4626476, 9252952, 18505904]

約数ペア:

[(1, 18505904), (2, 9252952), (4, 4626476), (8, 2313238), (16, 1156619), (53, 349168), (106, 174584), (139, 133136), (157, 117872), (212, 87292), (278, 66568), (314, 58936), (424, 43646), (556, 33284), (628, 29468), (848, 21823), (1112, 16642), (1256, 14734), (2224, 8321), (2512, 7367)]