21422005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{2843}}^1$

素因数の和:2996

約数の個数: 16

約数和(自身を含む): 28257984

約数和(自身を除く): 6835979

約数列:

[1, 5, 11, 55, 137, 685, 1507, 2843, 7535, 14215, 31273, 156365, 389491, 1947455, 4284401, 21422005]

約数ペア:

[(1, 21422005), (5, 4284401), (11, 1947455), (55, 389491), (137, 156365), (685, 31273), (1507, 14215), (2843, 7535)]