20978784

素因数分解:

$2^5\times 3^3\times {\mathrm{24281}}^1$

素因数の和:24300

約数の個数: 48

約数和(自身を含む): 61190640

約数和(自身を除く): 40211856

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 72, 96, 108, 144, 216, 288, 432, 864, 24281, 48562, 72843, 97124, 145686, 194248, 218529, 291372, 388496, 437058, 582744, 655587, 776992, 874116, 1165488, 1311174, 1748232, 2330976, 2622348, 3496464, 5244696, 6992928, 10489392, 20978784]

約数ペア:

[(1, 20978784), (2, 10489392), (3, 6992928), (4, 5244696), (6, 3496464), (8, 2622348), (9, 2330976), (12, 1748232), (16, 1311174), (18, 1165488), (24, 874116), (27, 776992), (32, 655587), (36, 582744), (48, 437058), (54, 388496), (72, 291372), (96, 218529), (108, 194248), (144, 145686), (216, 97124), (288, 72843), (432, 48562), (864, 24281)]