18715455

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4201}}^1$

素因数の和:4229

約数の個数: 40

約数和(自身を含む): 36607824

約数和(自身を除く): 17892369

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 135, 165, 297, 405, 495, 891, 1485, 4201, 4455, 12603, 21005, 37809, 46211, 63015, 113427, 138633, 189045, 231055, 340281, 415899, 567135, 693165, 1247697, 1701405, 2079495, 3743091, 6238485, 18715455]

約数ペア:

[(1, 18715455), (3, 6238485), (5, 3743091), (9, 2079495), (11, 1701405), (15, 1247697), (27, 693165), (33, 567135), (45, 415899), (55, 340281), (81, 231055), (99, 189045), (135, 138633), (165, 113427), (297, 63015), (405, 46211), (495, 37809), (891, 21005), (1485, 12603), (4201, 4455)]