20841990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53441}}^1$

素因数の和:53464

約数の個数: 32

約数和(自身を含む): 53869536

約数和(自身を除く): 33027546

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 53441, 106882, 160323, 267205, 320646, 534410, 694733, 801615, 1389466, 1603230, 2084199, 3473665, 4168398, 6947330, 10420995, 20841990]

約数ペア:

[(1, 20841990), (2, 10420995), (3, 6947330), (5, 4168398), (6, 3473665), (10, 2084199), (13, 1603230), (15, 1389466), (26, 801615), (30, 694733), (39, 534410), (65, 320646), (78, 267205), (130, 160323), (195, 106882), (390, 53441)]