19640961

素因数分解:

$3^5\times {\mathrm{131}}^1\times {\mathrm{617}}^1$

素因数の和:763

約数の個数: 24

約数和(自身を含む): 29693664

約数和(自身を除く): 10052703

約数列:

[1, 3, 9, 27, 81, 131, 243, 393, 617, 1179, 1851, 3537, 5553, 10611, 16659, 31833, 49977, 80827, 149931, 242481, 727443, 2182329, 6546987, 19640961]

約数ペア:

[(1, 19640961), (3, 6546987), (9, 2182329), (27, 727443), (81, 242481), (131, 149931), (243, 80827), (393, 49977), (617, 31833), (1179, 16659), (1851, 10611), (3537, 5553)]