20996957601

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{137235017}}^1$

素因数の和:137235040

約数の個数: 12

約数和(自身を含む): 32112994212

約数和(自身を除く): 11116036611

約数列:

[1, 3, 9, 17, 51, 153, 137235017, 411705051, 1235115153, 2332995289, 6998985867, 20996957601]

約数ペア:

[(1, 20996957601), (3, 6998985867), (9, 2332995289), (17, 1235115153), (51, 411705051), (153, 137235017)]