20157236281

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{209563}}^1$

素因数の和:209741

約数の個数: 24

約数和(自身を含む): 25419274944

約数和(自身を除く): 5262038663

約数列:

[1, 7, 13, 49, 91, 151, 637, 1057, 1963, 7399, 13741, 96187, 209563, 1466941, 2724319, 10268587, 19070233, 31644013, 133491631, 221508091, 411372169, 1550556637, 2879605183, 20157236281]

約数ペア:

[(1, 20157236281), (7, 2879605183), (13, 1550556637), (49, 411372169), (91, 221508091), (151, 133491631), (637, 31644013), (1057, 19070233), (1963, 10268587), (7399, 2724319), (13741, 1466941), (96187, 209563)]