18987664

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{9059}}^1$

素因数の和:9198

約数の個数: 20

約数和(自身を含む): 37073520

約数和(自身を除く): 18085856

約数列:

[1, 2, 4, 8, 16, 131, 262, 524, 1048, 2096, 9059, 18118, 36236, 72472, 144944, 1186729, 2373458, 4746916, 9493832, 18987664]

約数ペア:

[(1, 18987664), (2, 9493832), (4, 4746916), (8, 2373458), (16, 1186729), (131, 144944), (262, 72472), (524, 36236), (1048, 18118), (2096, 9059)]