21007300

素因数分解:

$2^2\times 5^2\times {\mathrm{83}}^1\times {\mathrm{2531}}^1$

素因数の和:2628

約数の個数: 36

約数和(自身を含む): 46153296

約数和(自身を除く): 25145996

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 83, 100, 166, 332, 415, 830, 1660, 2075, 2531, 4150, 5062, 8300, 10124, 12655, 25310, 50620, 63275, 126550, 210073, 253100, 420146, 840292, 1050365, 2100730, 4201460, 5251825, 10503650, 21007300]

約数ペア:

[(1, 21007300), (2, 10503650), (4, 5251825), (5, 4201460), (10, 2100730), (20, 1050365), (25, 840292), (50, 420146), (83, 253100), (100, 210073), (166, 126550), (332, 63275), (415, 50620), (830, 25310), (1660, 12655), (2075, 10124), (2531, 8300), (4150, 5062)]