81444447

素因数分解:

$3^4\times 7^1\times {\mathrm{379}}^2$

素因数の和:777

約数の個数: 30

約数和(自身を含む): 139412328

約数和(自身を除く): 57967881

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 379, 567, 1137, 2653, 3411, 7959, 10233, 23877, 30699, 71631, 143641, 214893, 430923, 1005487, 1292769, 3016461, 3878307, 9049383, 11634921, 27148149, 81444447]

約数ペア:

[(1, 81444447), (3, 27148149), (7, 11634921), (9, 9049383), (21, 3878307), (27, 3016461), (63, 1292769), (81, 1005487), (189, 430923), (379, 214893), (567, 143641), (1137, 71631), (2653, 30699), (3411, 23877), (7959, 10233)]