20721036381

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{154897}}^1$

素因数の和:155021

約数の個数: 32

約数和(自身を含む): 30424445568

約数和(自身を除く): 9703409187

約数列:

[1, 3, 17, 43, 51, 61, 129, 183, 731, 1037, 2193, 2623, 3111, 7869, 44591, 133773, 154897, 464691, 2633249, 6660571, 7899747, 9448717, 19981713, 28346151, 113229707, 160628189, 339689121, 406294831, 481884567, 1218884493, 6907012127, 20721036381]

約数ペア:

[(1, 20721036381), (3, 6907012127), (17, 1218884493), (43, 481884567), (51, 406294831), (61, 339689121), (129, 160628189), (183, 113229707), (731, 28346151), (1037, 19981713), (2193, 9448717), (2623, 7899747), (3111, 6660571), (7869, 2633249), (44591, 464691), (133773, 154897)]