217071765

素因数分解:

$3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{51869}}^1$

素因数の和:51914

約数の個数: 32

約数和(自身を含む): 398361600

約数和(自身を除く): 181289835

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 93, 135, 155, 279, 465, 837, 1395, 4185, 51869, 155607, 259345, 466821, 778035, 1400463, 1607939, 2334105, 4823817, 7002315, 8039695, 14471451, 24119085, 43414353, 72357255, 217071765]

約数ペア:

[(1, 217071765), (3, 72357255), (5, 43414353), (9, 24119085), (15, 14471451), (27, 8039695), (31, 7002315), (45, 4823817), (93, 2334105), (135, 1607939), (155, 1400463), (279, 778035), (465, 466821), (837, 259345), (1395, 155607), (4185, 51869)]