19979010

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{221989}}^1$

素因数の和:222002

約数の個数: 24

約数和(自身を含む): 51945660

約数和(自身を除く): 31966650

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 221989, 443978, 665967, 1109945, 1331934, 1997901, 2219890, 3329835, 3995802, 6659670, 9989505, 19979010]

約数ペア:

[(1, 19979010), (2, 9989505), (3, 6659670), (5, 3995802), (6, 3329835), (9, 2219890), (10, 1997901), (15, 1331934), (18, 1109945), (30, 665967), (45, 443978), (90, 221989)]