20534402

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{239}}^1$

素因数の和:303

約数の個数: 48

約数和(自身を含む): 39502080

約数和(自身を除く): 18967678

約数列:

[1, 2, 7, 14, 17, 19, 34, 38, 119, 133, 238, 239, 266, 323, 361, 478, 646, 722, 1673, 2261, 2527, 3346, 4063, 4522, 4541, 5054, 6137, 8126, 9082, 12274, 28441, 31787, 42959, 56882, 63574, 77197, 85918, 86279, 154394, 172558, 540379, 603953, 1080758, 1207906, 1466743, 2933486, 10267201, 20534402]

約数ペア:

[(1, 20534402), (2, 10267201), (7, 2933486), (14, 1466743), (17, 1207906), (19, 1080758), (34, 603953), (38, 540379), (119, 172558), (133, 154394), (238, 86279), (239, 85918), (266, 77197), (323, 63574), (361, 56882), (478, 42959), (646, 31787), (722, 28441), (1673, 12274), (2261, 9082), (2527, 8126), (3346, 6137), (4063, 5054), (4522, 4541)]