21560673

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{397}}^1\times {\mathrm{421}}^1$

素因数の和:864

約数の個数: 16

約数和(自身を含む): 29560256

約数和(自身を除く): 7999583

約数列:

[1, 3, 43, 129, 397, 421, 1191, 1263, 17071, 18103, 51213, 54309, 167137, 501411, 7186891, 21560673]

約数ペア:

[(1, 21560673), (3, 7186891), (43, 501411), (129, 167137), (397, 54309), (421, 51213), (1191, 18103), (1263, 17071)]