21491093

素因数分解:

${\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{661}}^1$

素因数の和:776

約数の個数: 16

約数和(自身を含む): 24133872

約数和(自身を除く): 2642779

約数列:

[1, 13, 41, 61, 533, 661, 793, 2501, 8593, 27101, 32513, 40321, 352313, 524173, 1653161, 21491093]

約数ペア:

[(1, 21491093), (13, 1653161), (41, 524173), (61, 352313), (533, 40321), (661, 32513), (793, 27101), (2501, 8593)]