19417805

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:245

約数の個数: 32

約数和(自身を含む): 26611200

約数和(自身を除く): 7193395

約数列:

[1, 5, 11, 41, 55, 79, 109, 205, 395, 451, 545, 869, 1199, 2255, 3239, 4345, 4469, 5995, 8611, 16195, 22345, 35629, 43055, 49159, 94721, 178145, 245795, 353051, 473605, 1765255, 3883561, 19417805]

約数ペア:

[(1, 19417805), (5, 3883561), (11, 1765255), (41, 473605), (55, 353051), (79, 245795), (109, 178145), (205, 94721), (395, 49159), (451, 43055), (545, 35629), (869, 22345), (1199, 16195), (2255, 8611), (3239, 5995), (4345, 4469)]