20709654

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{29}}^1\times {\mathrm{347}}^1$

素因数の和:402

約数の個数: 64

約数和(自身を含む): 50112000

約数和(自身を除く): 29402346

約数列:

[1, 2, 3, 6, 7, 14, 21, 29, 42, 49, 58, 87, 98, 147, 174, 203, 294, 343, 347, 406, 609, 686, 694, 1029, 1041, 1218, 1421, 2058, 2082, 2429, 2842, 4263, 4858, 7287, 8526, 9947, 10063, 14574, 17003, 19894, 20126, 29841, 30189, 34006, 51009, 59682, 60378, 70441, 102018, 119021, 140882, 211323, 238042, 357063, 422646, 493087, 714126, 986174, 1479261, 2958522, 3451609, 6903218, 10354827, 20709654]

約数ペア:

[(1, 20709654), (2, 10354827), (3, 6903218), (6, 3451609), (7, 2958522), (14, 1479261), (21, 986174), (29, 714126), (42, 493087), (49, 422646), (58, 357063), (87, 238042), (98, 211323), (147, 140882), (174, 119021), (203, 102018), (294, 70441), (343, 60378), (347, 59682), (406, 51009), (609, 34006), (686, 30189), (694, 29841), (1029, 20126), (1041, 19894), (1218, 17003), (1421, 14574), (2058, 10063), (2082, 9947), (2429, 8526), (2842, 7287), (4263, 4858)]