18388208

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{283}}^1$

素因数の和:453

約数の個数: 40

約数和(自身を含む): 37188096

約数和(自身を除く): 18799888

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 131, 248, 262, 283, 496, 524, 566, 1048, 1132, 2096, 2264, 4061, 4528, 8122, 8773, 16244, 17546, 32488, 35092, 37073, 64976, 70184, 74146, 140368, 148292, 296584, 593168, 1149263, 2298526, 4597052, 9194104, 18388208]

約数ペア:

[(1, 18388208), (2, 9194104), (4, 4597052), (8, 2298526), (16, 1149263), (31, 593168), (62, 296584), (124, 148292), (131, 140368), (248, 74146), (262, 70184), (283, 64976), (496, 37073), (524, 35092), (566, 32488), (1048, 17546), (1132, 16244), (2096, 8773), (2264, 8122), (4061, 4528)]