18420231

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1$

素因数の和:303

約数の個数: 32

約数和(自身を含む): 27426816

約数和(自身を除く): 9006585

約数列:

[1, 3, 17, 31, 51, 61, 93, 183, 191, 527, 573, 1037, 1581, 1891, 3111, 3247, 5673, 5921, 9741, 11651, 17763, 32147, 34953, 96441, 100657, 198067, 301971, 361181, 594201, 1083543, 6140077, 18420231]

約数ペア:

[(1, 18420231), (3, 6140077), (17, 1083543), (31, 594201), (51, 361181), (61, 301971), (93, 198067), (183, 100657), (191, 96441), (527, 34953), (573, 32147), (1037, 17763), (1581, 11651), (1891, 9741), (3111, 5921), (3247, 5673)]