21137028

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{3407}}^1$

素因数の和:3472

約数の個数: 48

約数和(自身を含む): 54964224

約数和(自身を除く): 33827196

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 47, 66, 94, 132, 141, 188, 282, 517, 564, 1034, 1551, 2068, 3102, 3407, 6204, 6814, 10221, 13628, 20442, 37477, 40884, 74954, 112431, 149908, 160129, 224862, 320258, 449724, 480387, 640516, 960774, 1761419, 1921548, 3522838, 5284257, 7045676, 10568514, 21137028]

約数ペア:

[(1, 21137028), (2, 10568514), (3, 7045676), (4, 5284257), (6, 3522838), (11, 1921548), (12, 1761419), (22, 960774), (33, 640516), (44, 480387), (47, 449724), (66, 320258), (94, 224862), (132, 160129), (141, 149908), (188, 112431), (282, 74954), (517, 40884), (564, 37477), (1034, 20442), (1551, 13628), (2068, 10221), (3102, 6814), (3407, 6204)]