2501999997

素因数分解:

$3^1\times 7^1\times {\mathrm{557}}^1\times {\mathrm{213901}}^1$

素因数の和:214468

約数の個数: 16

約数和(自身を含む): 3819434112

約数和(自身を除く): 1317434115

約数列:

[1, 3, 7, 21, 557, 1671, 3899, 11697, 213901, 641703, 1497307, 4491921, 119142857, 357428571, 833999999, 2501999997]

約数ペア:

[(1, 2501999997), (3, 833999999), (7, 357428571), (21, 119142857), (557, 4491921), (1671, 1497307), (3899, 641703), (11697, 213901)]