28978215

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{7459}}^1$

素因数の和:7511

約数の個数: 32

約数和(自身を含む): 54428160

約数和(自身を除く): 25449945

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 105, 111, 185, 259, 555, 777, 1295, 3885, 7459, 22377, 37295, 52213, 111885, 156639, 261065, 275983, 783195, 827949, 1379915, 1931881, 4139745, 5795643, 9659405, 28978215]

約数ペア:

[(1, 28978215), (3, 9659405), (5, 5795643), (7, 4139745), (15, 1931881), (21, 1379915), (35, 827949), (37, 783195), (105, 275983), (111, 261065), (185, 156639), (259, 111885), (555, 52213), (777, 37295), (1295, 22377), (3885, 7459)]