20161708308

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{661}}^1\times {\mathrm{121039}}^1$

素因数の和:121717

約数の個数: 72

約数和(自身を含む): 58333533440

約数和(自身を除く): 38171825132

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 661, 1322, 1983, 2644, 3966, 4627, 5949, 7932, 9254, 11898, 13881, 18508, 23796, 27762, 41643, 55524, 83286, 121039, 166572, 242078, 363117, 484156, 726234, 847273, 1089351, 1452468, 1694546, 2178702, 2541819, 3389092, 4357404, 5083638, 7625457, 10167276, 15250914, 30501828, 80006779, 160013558, 240020337, 320027116, 480040674, 560047453, 720061011, 960081348, 1120094906, 1440122022, 1680142359, 2240189812, 2880244044, 3360284718, 5040427077, 6720569436, 10080854154, 20161708308]

約数ペア:

[(1, 20161708308), (2, 10080854154), (3, 6720569436), (4, 5040427077), (6, 3360284718), (7, 2880244044), (9, 2240189812), (12, 1680142359), (14, 1440122022), (18, 1120094906), (21, 960081348), (28, 720061011), (36, 560047453), (42, 480040674), (63, 320027116), (84, 240020337), (126, 160013558), (252, 80006779), (661, 30501828), (1322, 15250914), (1983, 10167276), (2644, 7625457), (3966, 5083638), (4627, 4357404), (5949, 3389092), (7932, 2541819), (9254, 2178702), (11898, 1694546), (13881, 1452468), (18508, 1089351), (23796, 847273), (27762, 726234), (41643, 484156), (55524, 363117), (83286, 242078), (121039, 166572)]