18290657

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:281

約数の個数: 32

約数和(自身を含む): 24572160

約数和(自身を除く): 6281503

約数列:

[1, 7, 11, 17, 77, 89, 119, 157, 187, 623, 979, 1099, 1309, 1513, 1727, 2669, 6853, 10591, 12089, 13973, 16643, 18683, 29359, 97811, 116501, 153703, 205513, 237541, 1075921, 1662787, 2612951, 18290657]

約数ペア:

[(1, 18290657), (7, 2612951), (11, 1662787), (17, 1075921), (77, 237541), (89, 205513), (119, 153703), (157, 116501), (187, 97811), (623, 29359), (979, 18683), (1099, 16643), (1309, 13973), (1513, 12089), (1727, 10591), (2669, 6853)]