20138082219

素因数分解:

$3^4\times {\mathrm{617}}^1\times {\mathrm{402947}}^1$

素因数の和:403576

約数の個数: 20

約数和(自身を含む): 30131645544

約数和(自身を除く): 9993563325

約数列:

[1, 3, 9, 27, 81, 617, 1851, 5553, 16659, 49977, 402947, 1208841, 3626523, 10879569, 32638707, 248618299, 745854897, 2237564691, 6712694073, 20138082219]

約数ペア:

[(1, 20138082219), (3, 6712694073), (9, 2237564691), (27, 745854897), (81, 248618299), (617, 32638707), (1851, 10879569), (5553, 3626523), (16659, 1208841), (49977, 402947)]