19100420

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{13451}}^1$

素因数の和:13531

約数の個数: 24

約数和(自身を含む): 40678848

約数和(自身を除く): 21578428

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 13451, 26902, 53804, 67255, 134510, 269020, 955021, 1910042, 3820084, 4775105, 9550210, 19100420]

約数ペア:

[(1, 19100420), (2, 9550210), (4, 4775105), (5, 3820084), (10, 1910042), (20, 955021), (71, 269020), (142, 134510), (284, 67255), (355, 53804), (710, 26902), (1420, 13451)]