20450655

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{15671}}^1$

素因数の和:15711

約数の個数: 24

約数和(自身を含む): 36672480

約数和(自身を除く): 16221825

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 15671, 47013, 78355, 141039, 235065, 454459, 705195, 1363377, 2272295, 4090131, 6816885, 20450655]

約数ペア:

[(1, 20450655), (3, 6816885), (5, 4090131), (9, 2272295), (15, 1363377), (29, 705195), (45, 454459), (87, 235065), (145, 141039), (261, 78355), (435, 47013), (1305, 15671)]