19338009

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:229

約数の個数: 32

約数和(自身を含む): 28200960

約数和(自身を除く): 8862951

約数列:

[1, 3, 23, 47, 67, 69, 89, 141, 201, 267, 1081, 1541, 2047, 3149, 3243, 4183, 4623, 5963, 6141, 9447, 12549, 17889, 72427, 96209, 137149, 217281, 280261, 288627, 411447, 840783, 6446003, 19338009]

約数ペア:

[(1, 19338009), (3, 6446003), (23, 840783), (47, 411447), (67, 288627), (69, 280261), (89, 217281), (141, 137149), (201, 96209), (267, 72427), (1081, 17889), (1541, 12549), (2047, 9447), (3149, 6141), (3243, 5963), (4183, 4623)]