19305495

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{907}}^1$

素因数の和:972

約数の個数: 48

約数和(自身を含む): 37395072

約数和(自身を除く): 18089577

約数列:

[1, 3, 5, 9, 11, 15, 33, 43, 45, 55, 99, 129, 165, 215, 387, 473, 495, 645, 907, 1419, 1935, 2365, 2721, 4257, 4535, 7095, 8163, 9977, 13605, 21285, 29931, 39001, 40815, 49885, 89793, 117003, 149655, 195005, 351009, 429011, 448965, 585015, 1287033, 1755045, 2145055, 3861099, 6435165, 19305495]

約数ペア:

[(1, 19305495), (3, 6435165), (5, 3861099), (9, 2145055), (11, 1755045), (15, 1287033), (33, 585015), (43, 448965), (45, 429011), (55, 351009), (99, 195005), (129, 149655), (165, 117003), (215, 89793), (387, 49885), (473, 40815), (495, 39001), (645, 29931), (907, 21285), (1419, 13605), (1935, 9977), (2365, 8163), (2721, 7095), (4257, 4535)]