21000604794

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{215909}}^1$

素因数の和:215999

約数の個数: 64

約数和(自身を含む): 47880201600

約数和(自身を除く): 26879596806

約数列:

[1, 2, 3, 6, 13, 26, 29, 39, 43, 58, 78, 86, 87, 129, 174, 258, 377, 559, 754, 1118, 1131, 1247, 1677, 2262, 2494, 3354, 3741, 7482, 16211, 32422, 48633, 97266, 215909, 431818, 647727, 1295454, 2806817, 5613634, 6261361, 8420451, 9284087, 12522722, 16840902, 18568174, 18784083, 27852261, 37568166, 55704522, 81397693, 120693131, 162795386, 241386262, 244193079, 269238523, 362079393, 488386158, 538477046, 724158786, 807715569, 1615431138, 3500100799, 7000201598, 10500302397, 21000604794]

約数ペア:

[(1, 21000604794), (2, 10500302397), (3, 7000201598), (6, 3500100799), (13, 1615431138), (26, 807715569), (29, 724158786), (39, 538477046), (43, 488386158), (58, 362079393), (78, 269238523), (86, 244193079), (87, 241386262), (129, 162795386), (174, 120693131), (258, 81397693), (377, 55704522), (559, 37568166), (754, 27852261), (1118, 18784083), (1131, 18568174), (1247, 16840902), (1677, 12522722), (2262, 9284087), (2494, 8420451), (3354, 6261361), (3741, 5613634), (7482, 2806817), (16211, 1295454), (32422, 647727), (48633, 431818), (97266, 215909)]