21247736474

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1\times {\mathrm{12037}}^1$

素因数の和:12542

約数の個数: 32

約数和(自身を含む): 33449075712

約数和(自身を除く): 12201339238

約数列:

[1, 2, 31, 62, 71, 142, 401, 802, 2201, 4402, 12037, 12431, 24074, 24862, 28471, 56942, 373147, 746294, 854627, 882601, 1709254, 1765202, 4826837, 9653674, 26493437, 52986874, 149631947, 299263894, 342705427, 685410854, 10623868237, 21247736474]

約数ペア:

[(1, 21247736474), (2, 10623868237), (31, 685410854), (62, 342705427), (71, 299263894), (142, 149631947), (401, 52986874), (802, 26493437), (2201, 9653674), (4402, 4826837), (12037, 1765202), (12431, 1709254), (24074, 882601), (24862, 854627), (28471, 746294), (56942, 373147)]