19981917

素因数分解:

$3^3\times {\mathrm{23}}^2\times {\mathrm{1399}}^1$

素因数の和:1454

約数の個数: 24

約数和(自身を含む): 30968000

約数和(自身を除く): 10986083

約数列:

[1, 3, 9, 23, 27, 69, 207, 529, 621, 1399, 1587, 4197, 4761, 12591, 14283, 32177, 37773, 96531, 289593, 740071, 868779, 2220213, 6660639, 19981917]

約数ペア:

[(1, 19981917), (3, 6660639), (9, 2220213), (23, 868779), (27, 740071), (69, 289593), (207, 96531), (529, 37773), (621, 32177), (1399, 14283), (1587, 12591), (4197, 4761)]