31066371

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{15907}}^1$

素因数の和:15951

約数の個数: 24

約数和(自身を含む): 52941824

約数和(自身を除く): 21875453

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 15907, 47721, 111349, 143163, 334047, 493117, 1002141, 1479351, 3451819, 4438053, 10355457, 31066371]

約数ペア:

[(1, 31066371), (3, 10355457), (7, 4438053), (9, 3451819), (21, 1479351), (31, 1002141), (63, 493117), (93, 334047), (217, 143163), (279, 111349), (651, 47721), (1953, 15907)]