18215655

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1427}}^1$

素因数の和:1495

約数の個数: 32

約数和(自身を含む): 31256064

約数和(自身を除く): 13040409

約数列:

[1, 3, 5, 15, 23, 37, 69, 111, 115, 185, 345, 555, 851, 1427, 2553, 4255, 4281, 7135, 12765, 21405, 32821, 52799, 98463, 158397, 164105, 263995, 492315, 791985, 1214377, 3643131, 6071885, 18215655]

約数ペア:

[(1, 18215655), (3, 6071885), (5, 3643131), (15, 1214377), (23, 791985), (37, 492315), (69, 263995), (111, 164105), (115, 158397), (185, 98463), (345, 52799), (555, 32821), (851, 21405), (1427, 12765), (2553, 7135), (4255, 4281)]