18131806

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{281}}^1\times {\mathrm{419}}^1$

素因数の和:720

約数の個数: 32

約数和(自身を含む): 34110720

約数和(自身を除く): 15978914

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 281, 419, 562, 838, 1967, 2933, 3091, 3934, 4609, 5866, 6182, 9218, 21637, 32263, 43274, 64526, 117739, 235478, 824173, 1295129, 1648346, 2590258, 9065903, 18131806]

約数ペア:

[(1, 18131806), (2, 9065903), (7, 2590258), (11, 1648346), (14, 1295129), (22, 824173), (77, 235478), (154, 117739), (281, 64526), (419, 43274), (562, 32263), (838, 21637), (1967, 9218), (2933, 6182), (3091, 5866), (3934, 4609)]