31971219

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1789}}^1$

素因数の和:1859

約数の個数: 32

約数和(自身を含む): 52239360

約数和(自身を除く): 20268141

約数列:

[1, 3, 7, 21, 23, 37, 69, 111, 161, 259, 483, 777, 851, 1789, 2553, 5367, 5957, 12523, 17871, 37569, 41147, 66193, 123441, 198579, 288029, 463351, 864087, 1390053, 1522439, 4567317, 10657073, 31971219]

約数ペア:

[(1, 31971219), (3, 10657073), (7, 4567317), (21, 1522439), (23, 1390053), (37, 864087), (69, 463351), (111, 288029), (161, 198579), (259, 123441), (483, 66193), (777, 41147), (851, 37569), (1789, 17871), (2553, 12523), (5367, 5957)]