18921935

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:263

約数の個数: 32

約数和(自身を含む): 25546752

約数和(自身を除く): 6624817

約数列:

[1, 5, 17, 31, 43, 85, 155, 167, 215, 527, 731, 835, 1333, 2635, 2839, 3655, 5177, 6665, 7181, 14195, 22661, 25885, 35905, 88009, 113305, 122077, 222611, 440045, 610385, 1113055, 3784387, 18921935]

約数ペア:

[(1, 18921935), (5, 3784387), (17, 1113055), (31, 610385), (43, 440045), (85, 222611), (155, 122077), (167, 113305), (215, 88009), (527, 35905), (731, 25885), (835, 22661), (1333, 14195), (2635, 7181), (2839, 6665), (3655, 5177)]