71979663

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1$

素因数の和:471

約数の個数: 32

約数和(自身を含む): 111919104

約数和(自身を除く): 39939441

約数列:

[1, 3, 7, 21, 127, 137, 197, 381, 411, 591, 889, 959, 1379, 2667, 2877, 4137, 17399, 25019, 26989, 52197, 75057, 80967, 121793, 175133, 188923, 365379, 525399, 566769, 3427603, 10282809, 23993221, 71979663]

約数ペア:

[(1, 71979663), (3, 23993221), (7, 10282809), (21, 3427603), (127, 566769), (137, 525399), (197, 365379), (381, 188923), (411, 175133), (591, 121793), (889, 80967), (959, 75057), (1379, 52197), (2667, 26989), (2877, 25019), (4137, 17399)]