20485674

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{659}}^1$

素因数の和:835

約数の個数: 48

約数和(自身を含む): 48803040

約数和(自身を除く): 28317366

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 157, 198, 314, 471, 659, 942, 1318, 1413, 1727, 1977, 2826, 3454, 3954, 5181, 5931, 7249, 10362, 11862, 14498, 15543, 21747, 31086, 43494, 65241, 103463, 130482, 206926, 310389, 620778, 931167, 1138093, 1862334, 2276186, 3414279, 6828558, 10242837, 20485674]

約数ペア:

[(1, 20485674), (2, 10242837), (3, 6828558), (6, 3414279), (9, 2276186), (11, 1862334), (18, 1138093), (22, 931167), (33, 620778), (66, 310389), (99, 206926), (157, 130482), (198, 103463), (314, 65241), (471, 43494), (659, 31086), (942, 21747), (1318, 15543), (1413, 14498), (1727, 11862), (1977, 10362), (2826, 7249), (3454, 5931), (3954, 5181)]