18228616

素因数分解:

$2^3\times 7^1\times {\mathrm{163}}^1\times {\mathrm{1997}}^1$

素因数の和:2173

約数の個数: 32

約数和(自身を含む): 39320640

約数和(自身を除く): 21092024

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 163, 326, 652, 1141, 1304, 1997, 2282, 3994, 4564, 7988, 9128, 13979, 15976, 27958, 55916, 111832, 325511, 651022, 1302044, 2278577, 2604088, 4557154, 9114308, 18228616]

約数ペア:

[(1, 18228616), (2, 9114308), (4, 4557154), (7, 2604088), (8, 2278577), (14, 1302044), (28, 651022), (56, 325511), (163, 111832), (326, 55916), (652, 27958), (1141, 15976), (1304, 13979), (1997, 9128), (2282, 7988), (3994, 4564)]