21185961

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{487}}^1\times {\mathrm{853}}^1$

素因数の和:1360

約数の個数: 16

約数和(自身を含む): 30006144

約数和(自身を除く): 8820183

約数列:

[1, 3, 17, 51, 487, 853, 1461, 2559, 8279, 14501, 24837, 43503, 415411, 1246233, 7061987, 21185961]

約数ペア:

[(1, 21185961), (3, 7061987), (17, 1246233), (51, 415411), (487, 43503), (853, 24837), (1461, 14501), (2559, 8279)]