18253718

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{421}}^1$

素因数の和:612

約数の個数: 32

約数和(自身を含む): 33219840

約数和(自身を除く): 14966122

約数列:

[1, 2, 7, 14, 19, 38, 133, 163, 266, 326, 421, 842, 1141, 2282, 2947, 3097, 5894, 6194, 7999, 15998, 21679, 43358, 55993, 68623, 111986, 137246, 480361, 960722, 1303837, 2607674, 9126859, 18253718]

約数ペア:

[(1, 18253718), (2, 9126859), (7, 2607674), (14, 1303837), (19, 960722), (38, 480361), (133, 137246), (163, 111986), (266, 68623), (326, 55993), (421, 43358), (842, 21679), (1141, 15998), (2282, 7999), (2947, 6194), (3097, 5894)]