30811005

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{15923}}^1$

素因数の和:15977

約数の個数: 24

約数和(自身を含む): 54651168

約数和(自身を除く): 23840163

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 15923, 47769, 79615, 143307, 238845, 684689, 716535, 2054067, 3423445, 6162201, 10270335, 30811005]

約数ペア:

[(1, 30811005), (3, 10270335), (5, 6162201), (9, 3423445), (15, 2054067), (43, 716535), (45, 684689), (129, 238845), (215, 143307), (387, 79615), (645, 47769), (1935, 15923)]