20244688

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{283}}^1$

素因数の和:571

約数の個数: 40

約数和(自身を含む): 41836608

約数和(自身を除く): 21591920

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 263, 272, 283, 526, 566, 1052, 1132, 2104, 2264, 4208, 4471, 4528, 4811, 8942, 9622, 17884, 19244, 35768, 38488, 71536, 74429, 76976, 148858, 297716, 595432, 1190864, 1265293, 2530586, 5061172, 10122344, 20244688]

約数ペア:

[(1, 20244688), (2, 10122344), (4, 5061172), (8, 2530586), (16, 1265293), (17, 1190864), (34, 595432), (68, 297716), (136, 148858), (263, 76976), (272, 74429), (283, 71536), (526, 38488), (566, 35768), (1052, 19244), (1132, 17884), (2104, 9622), (2264, 8942), (4208, 4811), (4471, 4528)]