21656414

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{277}}^1$

素因数の和:420

約数の個数: 32

約数和(自身を含む): 36615936

約数和(自身を除く): 14959522

約数列:

[1, 2, 13, 26, 31, 62, 97, 194, 277, 403, 554, 806, 1261, 2522, 3007, 3601, 6014, 7202, 8587, 17174, 26869, 39091, 53738, 78182, 111631, 223262, 349297, 698594, 832939, 1665878, 10828207, 21656414]

約数ペア:

[(1, 21656414), (2, 10828207), (13, 1665878), (26, 832939), (31, 698594), (62, 349297), (97, 223262), (194, 111631), (277, 78182), (403, 53738), (554, 39091), (806, 26869), (1261, 17174), (2522, 8587), (3007, 7202), (3601, 6014)]