20895384237

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{383}}^1\times {\mathrm{28549}}^1$

素因数の和:28962

約数の個数: 48

約数和(自身を含む): 34994534400

約数和(自身を除く): 14099150163

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 383, 637, 1149, 1911, 2681, 4979, 8043, 14937, 18767, 28549, 34853, 56301, 85647, 104559, 199843, 243971, 371137, 599529, 731913, 1113411, 1398901, 2597959, 4196703, 7793877, 10934267, 18185713, 32802801, 54557139, 76539869, 142145471, 229619607, 426436413, 535779083, 995018297, 1607337249, 2985054891, 6965128079, 20895384237]

約数ペア:

[(1, 20895384237), (3, 6965128079), (7, 2985054891), (13, 1607337249), (21, 995018297), (39, 535779083), (49, 426436413), (91, 229619607), (147, 142145471), (273, 76539869), (383, 54557139), (637, 32802801), (1149, 18185713), (1911, 10934267), (2681, 7793877), (4979, 4196703), (8043, 2597959), (14937, 1398901), (18767, 1113411), (28549, 731913), (34853, 599529), (56301, 371137), (85647, 243971), (104559, 199843)]