19001378

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{14159}}^1$

素因数の和:14233

約数の個数: 16

約数和(自身を含む): 31605120

約数和(自身を除く): 12603742

約数列:

[1, 2, 11, 22, 61, 122, 671, 1342, 14159, 28318, 155749, 311498, 863699, 1727398, 9500689, 19001378]

約数ペア:

[(1, 19001378), (2, 9500689), (11, 1727398), (22, 863699), (61, 311498), (122, 155749), (671, 28318), (1342, 14159)]