81582417

素因数分解:

$3^3\times 7^1\times {\mathrm{149}}^1\times {\mathrm{2897}}^1$

素因数の和:3062

約数の個数: 32

約数和(自身を含む): 139104000

約数和(自身を除く): 57521583

約数列:

[1, 3, 7, 9, 21, 27, 63, 149, 189, 447, 1043, 1341, 2897, 3129, 4023, 8691, 9387, 20279, 26073, 28161, 60837, 78219, 182511, 431653, 547533, 1294959, 3021571, 3884877, 9064713, 11654631, 27194139, 81582417]

約数ペア:

[(1, 81582417), (3, 27194139), (7, 11654631), (9, 9064713), (21, 3884877), (27, 3021571), (63, 1294959), (149, 547533), (189, 431653), (447, 182511), (1043, 78219), (1341, 60837), (2897, 28161), (3129, 26073), (4023, 20279), (8691, 9387)]