19404105

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{1021}}^1$

素因数の和:1217

約数の個数: 32

約数和(自身を含む): 35712768

約数和(自身を除く): 16308663

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 181, 543, 905, 1021, 1267, 2715, 3063, 3801, 5105, 6335, 7147, 15315, 19005, 21441, 35735, 107205, 184801, 554403, 924005, 1293607, 2772015, 3880821, 6468035, 19404105]

約数ペア:

[(1, 19404105), (3, 6468035), (5, 3880821), (7, 2772015), (15, 1293607), (21, 924005), (35, 554403), (105, 184801), (181, 107205), (543, 35735), (905, 21441), (1021, 19005), (1267, 15315), (2715, 7147), (3063, 6335), (3801, 5105)]