20910195

素因数分解:

$3^2\times 5^1\times {\mathrm{419}}^1\times {\mathrm{1109}}^1$

素因数の和:1539

約数の個数: 24

約数和(自身を含む): 36363600

約数和(自身を除く): 15453405

約数列:

[1, 3, 5, 9, 15, 45, 419, 1109, 1257, 2095, 3327, 3771, 5545, 6285, 9981, 16635, 18855, 49905, 464671, 1394013, 2323355, 4182039, 6970065, 20910195]

約数ペア:

[(1, 20910195), (3, 6970065), (5, 4182039), (9, 2323355), (15, 1394013), (45, 464671), (419, 49905), (1109, 18855), (1257, 16635), (2095, 9981), (3327, 6285), (3771, 5545)]