20514955671

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{911}}^1\times {\mathrm{6271}}^1$

素因数の和:7217

約数の個数: 64

約数和(自身を含む): 36608409600

約数和(自身を除く): 16093453929

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 133, 171, 189, 399, 513, 911, 1197, 2733, 3591, 6271, 6377, 8199, 17309, 18813, 19131, 24597, 43897, 51927, 56439, 57393, 119149, 121163, 131691, 155781, 169317, 172179, 357447, 363489, 395073, 467343, 834043, 1072341, 1090467, 1185219, 2502129, 3217023, 3271401, 5712881, 7506387, 17138643, 22519161, 39990167, 51415929, 108544739, 119970501, 154247787, 325634217, 359911503, 759813173, 976902651, 1079734509, 2279439519, 2930707953, 6838318557, 20514955671]

約数ペア:

[(1, 20514955671), (3, 6838318557), (7, 2930707953), (9, 2279439519), (19, 1079734509), (21, 976902651), (27, 759813173), (57, 359911503), (63, 325634217), (133, 154247787), (171, 119970501), (189, 108544739), (399, 51415929), (513, 39990167), (911, 22519161), (1197, 17138643), (2733, 7506387), (3591, 5712881), (6271, 3271401), (6377, 3217023), (8199, 2502129), (17309, 1185219), (18813, 1090467), (19131, 1072341), (24597, 834043), (43897, 467343), (51927, 395073), (56439, 363489), (57393, 357447), (119149, 172179), (121163, 169317), (131691, 155781)]