20128756473

素因数分解:

$3^3\times 7^1\times {\mathrm{151}}^1\times {\mathrm{705307}}^1$

素因数の和:705474

約数の個数: 32

約数和(自身を含む): 34306181120

約数和(自身を除く): 14177424647

約数列:

[1, 3, 7, 9, 21, 27, 63, 151, 189, 453, 1057, 1359, 3171, 4077, 9513, 28539, 705307, 2115921, 4937149, 6347763, 14811447, 19043289, 44434341, 106501357, 133303023, 319504071, 745509499, 958512213, 2236528497, 2875536639, 6709585491, 20128756473]

約数ペア:

[(1, 20128756473), (3, 6709585491), (7, 2875536639), (9, 2236528497), (21, 958512213), (27, 745509499), (63, 319504071), (151, 133303023), (189, 106501357), (453, 44434341), (1057, 19043289), (1359, 14811447), (3171, 6347763), (4077, 4937149), (9513, 2115921), (28539, 705307)]