18813968

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{263}}^2$

素因数の和:551

約数の個数: 30

約数和(自身を含む): 38743614

約数和(自身を除く): 19929646

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 263, 272, 526, 1052, 2104, 4208, 4471, 8942, 17884, 35768, 69169, 71536, 138338, 276676, 553352, 1106704, 1175873, 2351746, 4703492, 9406984, 18813968]

約数ペア:

[(1, 18813968), (2, 9406984), (4, 4703492), (8, 2351746), (16, 1175873), (17, 1106704), (34, 553352), (68, 276676), (136, 138338), (263, 71536), (272, 69169), (526, 35768), (1052, 17884), (2104, 8942), (4208, 4471)]