21988410

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{5273}}^1$

素因数の和:5422

約数の個数: 32

約数和(自身を含む): 53161920

約数和(自身を除く): 31173510

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 139, 278, 417, 695, 834, 1390, 2085, 4170, 5273, 10546, 15819, 26365, 31638, 52730, 79095, 158190, 732947, 1465894, 2198841, 3664735, 4397682, 7329470, 10994205, 21988410]

約数ペア:

[(1, 21988410), (2, 10994205), (3, 7329470), (5, 4397682), (6, 3664735), (10, 2198841), (15, 1465894), (30, 732947), (139, 158190), (278, 79095), (417, 52730), (695, 31638), (834, 26365), (1390, 15819), (2085, 10546), (4170, 5273)]