21061020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{2029}}^1$

素因数の和:2214

約数の個数: 48

約数和(自身を含む): 59340960

約数和(自身を除く): 38279940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 173, 346, 519, 692, 865, 1038, 1730, 2029, 2076, 2595, 3460, 4058, 5190, 6087, 8116, 10145, 10380, 12174, 20290, 24348, 30435, 40580, 60870, 121740, 351017, 702034, 1053051, 1404068, 1755085, 2106102, 3510170, 4212204, 5265255, 7020340, 10530510, 21061020]

約数ペア:

[(1, 21061020), (2, 10530510), (3, 7020340), (4, 5265255), (5, 4212204), (6, 3510170), (10, 2106102), (12, 1755085), (15, 1404068), (20, 1053051), (30, 702034), (60, 351017), (173, 121740), (346, 60870), (519, 40580), (692, 30435), (865, 24348), (1038, 20290), (1730, 12174), (2029, 10380), (2076, 10145), (2595, 8116), (3460, 6087), (4058, 5190)]