19659458

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{991}}^1$

素因数の和:1122

約数の個数: 32

約数和(自身を含む): 36664320

約数和(自身を除く): 17004862

約数列:

[1, 2, 7, 13, 14, 26, 91, 109, 182, 218, 763, 991, 1417, 1526, 1982, 2834, 6937, 9919, 12883, 13874, 19838, 25766, 90181, 108019, 180362, 216038, 756133, 1404247, 1512266, 2808494, 9829729, 19659458]

約数ペア:

[(1, 19659458), (2, 9829729), (7, 2808494), (13, 1512266), (14, 1404247), (26, 756133), (91, 216038), (109, 180362), (182, 108019), (218, 90181), (763, 25766), (991, 19838), (1417, 13874), (1526, 12883), (1982, 9919), (2834, 6937)]