289396989

素因数分解:

$3^3\times 7^3\times {\mathrm{31249}}^1$

素因数の和:31279

約数の個数: 32

約数和(自身を含む): 500000000

約数和(自身を除く): 210603011

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 343, 441, 1029, 1323, 3087, 9261, 31249, 93747, 218743, 281241, 656229, 843723, 1531201, 1968687, 4593603, 5906061, 10718407, 13780809, 32155221, 41342427, 96465663, 289396989]

約数ペア:

[(1, 289396989), (3, 96465663), (7, 41342427), (9, 32155221), (21, 13780809), (27, 10718407), (49, 5906061), (63, 4593603), (147, 1968687), (189, 1531201), (343, 843723), (441, 656229), (1029, 281241), (1323, 218743), (3087, 93747), (9261, 31249)]