21635751

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{367}}^1\times {\mathrm{457}}^1$

素因数の和:870

約数の個数: 16

約数和(自身を含む): 29663744

約数和(自身を除く): 8027993

約数列:

[1, 3, 43, 129, 367, 457, 1101, 1371, 15781, 19651, 47343, 58953, 167719, 503157, 7211917, 21635751]

約数ペア:

[(1, 21635751), (3, 7211917), (43, 503157), (129, 167719), (367, 58953), (457, 47343), (1101, 19651), (1371, 15781)]