21000337386

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{1170979}}^1$

素因数の和:1171059

約数の個数: 48

約数和(自身を含む): 49658919840

約数和(自身を除く): 28658582454

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 61, 98, 122, 147, 183, 294, 366, 427, 854, 1281, 2562, 2989, 5978, 8967, 17934, 1170979, 2341958, 3512937, 7025874, 8196853, 16393706, 24590559, 49181118, 57377971, 71429719, 114755942, 142859438, 172133913, 214289157, 344267826, 428578314, 500008033, 1000016066, 1500024099, 3000048198, 3500056231, 7000112462, 10500168693, 21000337386]

約数ペア:

[(1, 21000337386), (2, 10500168693), (3, 7000112462), (6, 3500056231), (7, 3000048198), (14, 1500024099), (21, 1000016066), (42, 500008033), (49, 428578314), (61, 344267826), (98, 214289157), (122, 172133913), (147, 142859438), (183, 114755942), (294, 71429719), (366, 57377971), (427, 49181118), (854, 24590559), (1281, 16393706), (2562, 8196853), (2989, 7025874), (5978, 3512937), (8967, 2341958), (17934, 1170979)]