20917026

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1259}}^1$

素因数の和:1351

約数の個数: 48

約数和(自身を含む): 49533120

約数和(自身を除く): 28616094

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 71, 78, 117, 142, 213, 234, 426, 639, 923, 1259, 1278, 1846, 2518, 2769, 3777, 5538, 7554, 8307, 11331, 16367, 16614, 22662, 32734, 49101, 89389, 98202, 147303, 178778, 268167, 294606, 536334, 804501, 1162057, 1609002, 2324114, 3486171, 6972342, 10458513, 20917026]

約数ペア:

[(1, 20917026), (2, 10458513), (3, 6972342), (6, 3486171), (9, 2324114), (13, 1609002), (18, 1162057), (26, 804501), (39, 536334), (71, 294606), (78, 268167), (117, 178778), (142, 147303), (213, 98202), (234, 89389), (426, 49101), (639, 32734), (923, 22662), (1259, 16614), (1278, 16367), (1846, 11331), (2518, 8307), (2769, 7554), (3777, 5538)]