20948216

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:264

約数の個数: 64

約数和(自身を含む): 44815680

約数和(自身を除く): 23867464

約数列:

[1, 2, 4, 8, 17, 23, 34, 37, 46, 68, 74, 92, 136, 148, 181, 184, 296, 362, 391, 629, 724, 782, 851, 1258, 1448, 1564, 1702, 2516, 3077, 3128, 3404, 4163, 5032, 6154, 6697, 6808, 8326, 12308, 13394, 14467, 16652, 24616, 26788, 28934, 33304, 53576, 57868, 70771, 113849, 115736, 141542, 154031, 227698, 283084, 308062, 455396, 566168, 616124, 910792, 1232248, 2618527, 5237054, 10474108, 20948216]

約数ペア:

[(1, 20948216), (2, 10474108), (4, 5237054), (8, 2618527), (17, 1232248), (23, 910792), (34, 616124), (37, 566168), (46, 455396), (68, 308062), (74, 283084), (92, 227698), (136, 154031), (148, 141542), (181, 115736), (184, 113849), (296, 70771), (362, 57868), (391, 53576), (629, 33304), (724, 28934), (782, 26788), (851, 24616), (1258, 16652), (1448, 14467), (1564, 13394), (1702, 12308), (2516, 8326), (3077, 6808), (3128, 6697), (3404, 6154), (4163, 5032)]