20961878

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{65099}}^1$

素因数の和:65131

約数の個数: 16

約数和(自身を含む): 37497600

約数和(自身を除く): 16535722

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 65099, 130198, 455693, 911386, 1497277, 2994554, 10480939, 20961878]

約数ペア:

[(1, 20961878), (2, 10480939), (7, 2994554), (14, 1497277), (23, 911386), (46, 455693), (161, 130198), (322, 65099)]