258968918

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{187931}}^1$

素因数の和:187999

約数の個数: 16

約数和(自身を含む): 426229776

約数和(自身を除く): 167260858

約数列:

[1, 2, 13, 26, 53, 106, 689, 1378, 187931, 375862, 2443103, 4886206, 9960343, 19920686, 129484459, 258968918]

約数ペア:

[(1, 258968918), (2, 129484459), (13, 19920686), (26, 9960343), (53, 4886206), (106, 2443103), (689, 375862), (1378, 187931)]