21559395

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2$

素因数の和:97

約数の個数: 96

約数和(自身を含む): 44593920

約数和(自身を除く): 23034525

約数列:

[1, 3, 5, 11, 13, 15, 19, 23, 33, 39, 55, 57, 65, 69, 95, 115, 143, 165, 195, 209, 247, 253, 285, 299, 345, 429, 437, 529, 627, 715, 741, 759, 897, 1045, 1235, 1265, 1311, 1495, 1587, 2145, 2185, 2645, 2717, 3135, 3289, 3705, 3795, 4485, 4807, 5681, 5819, 6555, 6877, 7935, 8151, 9867, 10051, 13585, 14421, 16445, 17043, 17457, 20631, 24035, 28405, 29095, 30153, 34385, 40755, 49335, 50255, 62491, 72105, 75647, 85215, 87285, 103155, 110561, 130663, 150765, 187473, 226941, 312455, 331683, 378235, 391989, 552805, 653315, 937365, 1134705, 1437293, 1658415, 1959945, 4311879, 7186465, 21559395]

約数ペア:

[(1, 21559395), (3, 7186465), (5, 4311879), (11, 1959945), (13, 1658415), (15, 1437293), (19, 1134705), (23, 937365), (33, 653315), (39, 552805), (55, 391989), (57, 378235), (65, 331683), (69, 312455), (95, 226941), (115, 187473), (143, 150765), (165, 130663), (195, 110561), (209, 103155), (247, 87285), (253, 85215), (285, 75647), (299, 72105), (345, 62491), (429, 50255), (437, 49335), (529, 40755), (627, 34385), (715, 30153), (741, 29095), (759, 28405), (897, 24035), (1045, 20631), (1235, 17457), (1265, 17043), (1311, 16445), (1495, 14421), (1587, 13585), (2145, 10051), (2185, 9867), (2645, 8151), (2717, 7935), (3135, 6877), (3289, 6555), (3705, 5819), (3795, 5681), (4485, 4807)]