17638907

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:251

約数の個数: 32

約数和(自身を含む): 22450176

約数和(自身を除く): 4811269

約数列:

[1, 11, 13, 23, 31, 143, 173, 253, 299, 341, 403, 713, 1903, 2249, 3289, 3979, 4433, 5363, 7843, 9269, 24739, 43769, 51727, 58993, 69719, 101959, 123349, 568997, 766909, 1356839, 1603537, 17638907]

約数ペア:

[(1, 17638907), (11, 1603537), (13, 1356839), (23, 766909), (31, 568997), (143, 123349), (173, 101959), (253, 69719), (299, 58993), (341, 51727), (403, 43769), (713, 24739), (1903, 9269), (2249, 7843), (3289, 5363), (3979, 4433)]