18741242

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{389}}^1$

素因数の和:530

約数の個数: 32

約数和(自身を含む): 32432400

約数和(自身を除く): 13691158

約数列:

[1, 2, 13, 17, 26, 34, 109, 218, 221, 389, 442, 778, 1417, 1853, 2834, 3706, 5057, 6613, 10114, 13226, 24089, 42401, 48178, 84802, 85969, 171938, 551213, 720817, 1102426, 1441634, 9370621, 18741242]

約数ペア:

[(1, 18741242), (2, 9370621), (13, 1441634), (17, 1102426), (26, 720817), (34, 551213), (109, 171938), (218, 85969), (221, 84802), (389, 48178), (442, 42401), (778, 24089), (1417, 13226), (1853, 10114), (2834, 6613), (3706, 5057)]