21000918105

素因数分解:

$3^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1491013}}^1$

素因数の和:1491337

約数の個数: 24

約数和(自身を含む): 36517914888

約数和(自身を除く): 15516996783

約数列:

[1, 3, 5, 9, 15, 45, 313, 939, 1565, 2817, 4695, 14085, 1491013, 4473039, 7455065, 13419117, 22365195, 67095585, 466687069, 1400061207, 2333435345, 4200183621, 7000306035, 21000918105]

約数ペア:

[(1, 21000918105), (3, 7000306035), (5, 4200183621), (9, 2333435345), (15, 1400061207), (45, 466687069), (313, 67095585), (939, 22365195), (1565, 13419117), (2817, 7455065), (4695, 4473039), (14085, 1491013)]