20009722761

素因数分解:

$3^3\times 7^2\times {\mathrm{251}}^1\times {\mathrm{60257}}^1$

素因数の和:60531

約数の個数: 48

約数和(自身を含む): 34621836480

約数和(自身を除く): 14612113719

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 251, 441, 753, 1323, 1757, 2259, 5271, 6777, 12299, 15813, 36897, 47439, 60257, 110691, 180771, 332073, 421799, 542313, 1265397, 1626939, 2952593, 3796191, 8857779, 11388573, 15124507, 26573337, 45373521, 79720011, 105871549, 136120563, 317614647, 408361689, 741100843, 952843941, 2223302529, 2858531823, 6669907587, 20009722761]

約数ペア:

[(1, 20009722761), (3, 6669907587), (7, 2858531823), (9, 2223302529), (21, 952843941), (27, 741100843), (49, 408361689), (63, 317614647), (147, 136120563), (189, 105871549), (251, 79720011), (441, 45373521), (753, 26573337), (1323, 15124507), (1757, 11388573), (2259, 8857779), (5271, 3796191), (6777, 2952593), (12299, 1626939), (15813, 1265397), (36897, 542313), (47439, 421799), (60257, 332073), (110691, 180771)]