208113381

素因数分解:

$3^4\times 7^1\times {\mathrm{241}}^1\times {\mathrm{1523}}^1$

素因数の和:1783

約数の個数: 40

約数和(自身を含む): 357006144

約数和(自身を除く): 148892763

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 241, 567, 723, 1523, 1687, 2169, 4569, 5061, 6507, 10661, 13707, 15183, 19521, 31983, 41121, 45549, 95949, 123363, 136647, 287847, 367043, 863541, 1101129, 2569301, 3303387, 7707903, 9910161, 23123709, 29730483, 69371127, 208113381]

約数ペア:

[(1, 208113381), (3, 69371127), (7, 29730483), (9, 23123709), (21, 9910161), (27, 7707903), (63, 3303387), (81, 2569301), (189, 1101129), (241, 863541), (567, 367043), (723, 287847), (1523, 136647), (1687, 123363), (2169, 95949), (4569, 45549), (5061, 41121), (6507, 31983), (10661, 19521), (13707, 15183)]