18819656

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{317}}^1$

素因数の和:545

約数の個数: 32

約数和(自身を含む): 36461880

約数和(自身を除く): 17642224

約数列:

[1, 2, 4, 8, 41, 82, 164, 181, 317, 328, 362, 634, 724, 1268, 1448, 2536, 7421, 12997, 14842, 25994, 29684, 51988, 57377, 59368, 103976, 114754, 229508, 459016, 2352457, 4704914, 9409828, 18819656]

約数ペア:

[(1, 18819656), (2, 9409828), (4, 4704914), (8, 2352457), (41, 459016), (82, 229508), (164, 114754), (181, 103976), (317, 59368), (328, 57377), (362, 51988), (634, 29684), (724, 25994), (1268, 14842), (1448, 12997), (2536, 7421)]