19485531

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{557}}^1$

素因数の和:612

約数の個数: 36

約数和(自身を含む): 31859568

約数和(自身を除く): 12374037

約数列:

[1, 3, 9, 13, 23, 39, 69, 117, 169, 207, 299, 507, 557, 897, 1521, 1671, 2691, 3887, 5013, 7241, 11661, 12811, 21723, 34983, 38433, 65169, 94133, 115299, 166543, 282399, 499629, 847197, 1498887, 2165059, 6495177, 19485531]

約数ペア:

[(1, 19485531), (3, 6495177), (9, 2165059), (13, 1498887), (23, 847197), (39, 499629), (69, 282399), (117, 166543), (169, 115299), (207, 94133), (299, 65169), (507, 38433), (557, 34983), (897, 21723), (1521, 12811), (1671, 11661), (2691, 7241), (3887, 5013)]