18991034

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{1951}}^1$

素因数の和:2141

約数の個数: 16

約数和(自身を含む): 29607936

約数和(自身を除く): 10616902

約数列:

[1, 2, 31, 62, 157, 314, 1951, 3902, 4867, 9734, 60481, 120962, 306307, 612614, 9495517, 18991034]

約数ペア:

[(1, 18991034), (2, 9495517), (31, 612614), (62, 306307), (157, 120962), (314, 60481), (1951, 9734), (3902, 4867)]