16431885

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 29877120

約数和(自身を除く): 13445235

約数列:

[1, 3, 5, 9, 15, 37, 45, 71, 111, 139, 185, 213, 333, 355, 417, 555, 639, 695, 1065, 1251, 1665, 2085, 2627, 3195, 5143, 6255, 7881, 9869, 13135, 15429, 23643, 25715, 29607, 39405, 46287, 49345, 77145, 88821, 118215, 148035, 231435, 365153, 444105, 1095459, 1825765, 3286377, 5477295, 16431885]

約数ペア:

[(1, 16431885), (3, 5477295), (5, 3286377), (9, 1825765), (15, 1095459), (37, 444105), (45, 365153), (71, 231435), (111, 148035), (139, 118215), (185, 88821), (213, 77145), (333, 49345), (355, 46287), (417, 39405), (555, 29607), (639, 25715), (695, 23643), (1065, 15429), (1251, 13135), (1665, 9869), (2085, 7881), (2627, 6255), (3195, 5143)]