19689405

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{45263}}^1$

素因数の和:45300

約数の個数: 16

約数和(自身を含む): 32590080

約数和(自身を除く): 12900675

約数列:

[1, 3, 5, 15, 29, 87, 145, 435, 45263, 135789, 226315, 678945, 1312627, 3937881, 6563135, 19689405]

約数ペア:

[(1, 19689405), (3, 6563135), (5, 3937881), (15, 1312627), (29, 678945), (87, 226315), (145, 135789), (435, 45263)]