21972618

素因数分解:

$2^1\times 3^2\times {\mathrm{1087}}^1\times {\mathrm{1123}}^1$

素因数の和:2218

約数の個数: 24

約数和(自身を含む): 47693568

約数和(自身を除く): 25720950

約数列:

[1, 2, 3, 6, 9, 18, 1087, 1123, 2174, 2246, 3261, 3369, 6522, 6738, 9783, 10107, 19566, 20214, 1220701, 2441402, 3662103, 7324206, 10986309, 21972618]

約数ペア:

[(1, 21972618), (2, 10986309), (3, 7324206), (6, 3662103), (9, 2441402), (18, 1220701), (1087, 20214), (1123, 19566), (2174, 10107), (2246, 9783), (3261, 6738), (3369, 6522)]