21000598845

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{313}}^1\times {\mathrm{439}}^1\times {\mathrm{443}}^1$

素因数の和:1226

約数の個数: 64

約数和(自身を含む): 35333591040

約数和(自身を除く): 14332992195

約数列:

[1, 3, 5, 15, 23, 69, 115, 313, 345, 439, 443, 939, 1317, 1329, 1565, 2195, 2215, 4695, 6585, 6645, 7199, 10097, 10189, 21597, 30291, 30567, 35995, 50485, 50945, 107985, 137407, 138659, 151455, 152835, 194477, 412221, 415977, 583431, 687035, 693295, 972385, 2061105, 2079885, 2917155, 3160361, 3189157, 4472971, 9481083, 9567471, 13418913, 15801805, 15945785, 22364855, 47405415, 47837355, 60871301, 67094565, 182613903, 304356505, 913069515, 1400039923, 4200119769, 7000199615, 21000598845]

約数ペア:

[(1, 21000598845), (3, 7000199615), (5, 4200119769), (15, 1400039923), (23, 913069515), (69, 304356505), (115, 182613903), (313, 67094565), (345, 60871301), (439, 47837355), (443, 47405415), (939, 22364855), (1317, 15945785), (1329, 15801805), (1565, 13418913), (2195, 9567471), (2215, 9481083), (4695, 4472971), (6585, 3189157), (6645, 3160361), (7199, 2917155), (10097, 2079885), (10189, 2061105), (21597, 972385), (30291, 693295), (30567, 687035), (35995, 583431), (50485, 415977), (50945, 412221), (107985, 194477), (137407, 152835), (138659, 151455)]