81013947

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{1039}}^1$

素因数の和:1175

約数の個数: 32

約数和(自身を含む): 127795200

約数和(自身を除く): 46781253

約数列:

[1, 3, 7, 21, 47, 79, 141, 237, 329, 553, 987, 1039, 1659, 3117, 3713, 7273, 11139, 21819, 25991, 48833, 77973, 82081, 146499, 246243, 341831, 574567, 1025493, 1723701, 3857807, 11573421, 27004649, 81013947]

約数ペア:

[(1, 81013947), (3, 27004649), (7, 11573421), (21, 3857807), (47, 1723701), (79, 1025493), (141, 574567), (237, 341831), (329, 246243), (553, 146499), (987, 82081), (1039, 77973), (1659, 48833), (3117, 25991), (3713, 21819), (7273, 11139)]