21721956

素因数分解:

$2^2\times 3^1\times {\mathrm{109}}^1\times {\mathrm{16607}}^1$

素因数の和:16723

約数の個数: 24

約数和(自身を含む): 51152640

約数和(自身を除く): 29430684

約数列:

[1, 2, 3, 4, 6, 12, 109, 218, 327, 436, 654, 1308, 16607, 33214, 49821, 66428, 99642, 199284, 1810163, 3620326, 5430489, 7240652, 10860978, 21721956]

約数ペア:

[(1, 21721956), (2, 10860978), (3, 7240652), (4, 5430489), (6, 3620326), (12, 1810163), (109, 199284), (218, 99642), (327, 66428), (436, 49821), (654, 33214), (1308, 16607)]