20817804

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{5273}}^1$

素因数の和:5334

約数の個数: 48

約数和(自身を含む): 56706048

約数和(自身を除く): 35888244

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 47, 84, 94, 141, 188, 282, 329, 564, 658, 987, 1316, 1974, 3948, 5273, 10546, 15819, 21092, 31638, 36911, 63276, 73822, 110733, 147644, 221466, 247831, 442932, 495662, 743493, 991324, 1486986, 1734817, 2973972, 3469634, 5204451, 6939268, 10408902, 20817804]

約数ペア:

[(1, 20817804), (2, 10408902), (3, 6939268), (4, 5204451), (6, 3469634), (7, 2973972), (12, 1734817), (14, 1486986), (21, 991324), (28, 743493), (42, 495662), (47, 442932), (84, 247831), (94, 221466), (141, 147644), (188, 110733), (282, 73822), (329, 63276), (564, 36911), (658, 31638), (987, 21092), (1316, 15819), (1974, 10546), (3948, 5273)]