17980118

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2141}}^1$

素因数の和:2192

約数の個数: 32

約数和(自身を含む): 32387040

約数和(自身を除く): 14406922

約数列:

[1, 2, 13, 17, 19, 26, 34, 38, 221, 247, 323, 442, 494, 646, 2141, 4199, 4282, 8398, 27833, 36397, 40679, 55666, 72794, 81358, 473161, 528827, 691543, 946322, 1057654, 1383086, 8990059, 17980118]

約数ペア:

[(1, 17980118), (2, 8990059), (13, 1383086), (17, 1057654), (19, 946322), (26, 691543), (34, 528827), (38, 473161), (221, 81358), (247, 72794), (323, 55666), (442, 40679), (494, 36397), (646, 27833), (2141, 8398), (4199, 4282)]