20650059

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:249

約数の個数: 40

約数和(自身を含む): 32670000

約数和(自身を除く): 12019941

約数列:

[1, 3, 9, 27, 29, 59, 81, 87, 149, 177, 261, 447, 531, 783, 1341, 1593, 1711, 2349, 4023, 4321, 4779, 5133, 8791, 12069, 12963, 15399, 26373, 38889, 46197, 79119, 116667, 138591, 237357, 254939, 350001, 712071, 764817, 2294451, 6883353, 20650059]

約数ペア:

[(1, 20650059), (3, 6883353), (9, 2294451), (27, 764817), (29, 712071), (59, 350001), (81, 254939), (87, 237357), (149, 138591), (177, 116667), (261, 79119), (447, 46197), (531, 38889), (783, 26373), (1341, 15399), (1593, 12963), (1711, 12069), (2349, 8791), (4023, 5133), (4321, 4779)]