15679800129

素因数分解:

$3^1\times 7^4\times {\mathrm{2176843}}^1$

素因数の和:2176874

約数の個数: 20

約数和(自身を含む): 24389360176

約数和(自身を除く): 8709560047

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 7203, 2176843, 6530529, 15237901, 45713703, 106665307, 319995921, 746657149, 2239971447, 5226600043, 15679800129]

約数ペア:

[(1, 15679800129), (3, 5226600043), (7, 2239971447), (21, 746657149), (49, 319995921), (147, 106665307), (343, 45713703), (1029, 15237901), (2401, 6530529), (7203, 2176843)]