21023220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20611}}^1$

素因数の和:20640

約数の個数: 48

約数和(自身を含む): 62330688

約数和(自身を除く): 41307468

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 20611, 41222, 61833, 82444, 103055, 123666, 206110, 247332, 309165, 350387, 412220, 618330, 700774, 1051161, 1236660, 1401548, 1751935, 2102322, 3503870, 4204644, 5255805, 7007740, 10511610, 21023220]

約数ペア:

[(1, 21023220), (2, 10511610), (3, 7007740), (4, 5255805), (5, 4204644), (6, 3503870), (10, 2102322), (12, 1751935), (15, 1401548), (17, 1236660), (20, 1051161), (30, 700774), (34, 618330), (51, 412220), (60, 350387), (68, 309165), (85, 247332), (102, 206110), (170, 123666), (204, 103055), (255, 82444), (340, 61833), (510, 41222), (1020, 20611)]