18617907

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{431}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 33094656

約数和(自身を除く): 14476749

約数列:

[1, 3, 7, 11, 17, 21, 33, 51, 77, 119, 121, 187, 231, 357, 363, 431, 561, 847, 1293, 1309, 2057, 2541, 3017, 3927, 4741, 6171, 7327, 9051, 14223, 14399, 21981, 33187, 43197, 51289, 52151, 80597, 99561, 153867, 156453, 241791, 365057, 564179, 886567, 1095171, 1692537, 2659701, 6205969, 18617907]

約数ペア:

[(1, 18617907), (3, 6205969), (7, 2659701), (11, 1692537), (17, 1095171), (21, 886567), (33, 564179), (51, 365057), (77, 241791), (119, 156453), (121, 153867), (187, 99561), (231, 80597), (357, 52151), (363, 51289), (431, 43197), (561, 33187), (847, 21981), (1293, 14399), (1309, 14223), (2057, 9051), (2541, 7327), (3017, 6171), (3927, 4741)]