21063285

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{433}}^1$

素因数の和:514

約数の個数: 48

約数和(自身を含む): 38997504

約数和(自身を除く): 17934219

約数列:

[1, 3, 5, 9, 15, 23, 45, 47, 69, 115, 141, 207, 235, 345, 423, 433, 705, 1035, 1081, 1299, 2115, 2165, 3243, 3897, 5405, 6495, 9729, 9959, 16215, 19485, 20351, 29877, 48645, 49795, 61053, 89631, 101755, 149385, 183159, 305265, 448155, 468073, 915795, 1404219, 2340365, 4212657, 7021095, 21063285]

約数ペア:

[(1, 21063285), (3, 7021095), (5, 4212657), (9, 2340365), (15, 1404219), (23, 915795), (45, 468073), (47, 448155), (69, 305265), (115, 183159), (141, 149385), (207, 101755), (235, 89631), (345, 61053), (423, 49795), (433, 48645), (705, 29877), (1035, 20351), (1081, 19485), (1299, 16215), (2115, 9959), (2165, 9729), (3243, 6495), (3897, 5405)]