219947812

素因数分解:

$2^2\times 7^1\times {\mathrm{359}}^1\times {\mathrm{21881}}^1$

素因数の和:22251

約数の個数: 24

約数和(自身を含む): 441141120

約数和(自身を除く): 221193308

約数列:

[1, 2, 4, 7, 14, 28, 359, 718, 1436, 2513, 5026, 10052, 21881, 43762, 87524, 153167, 306334, 612668, 7855279, 15710558, 31421116, 54986953, 109973906, 219947812]

約数ペア:

[(1, 219947812), (2, 109973906), (4, 54986953), (7, 31421116), (14, 15710558), (28, 7855279), (359, 612668), (718, 306334), (1436, 153167), (2513, 87524), (5026, 43762), (10052, 21881)]