21301774

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1$

素因数の和:185

約数の個数: 48

約数和(自身を含む): 37946880

約数和(自身を除く): 16645106

約数列:

[1, 2, 13, 19, 26, 31, 38, 62, 107, 169, 214, 247, 338, 403, 494, 589, 806, 1178, 1391, 2033, 2782, 3211, 3317, 4066, 5239, 6422, 6634, 7657, 10478, 15314, 18083, 26429, 36166, 43121, 52858, 63023, 86242, 99541, 126046, 199082, 343577, 560573, 687154, 819299, 1121146, 1638598, 10650887, 21301774]

約数ペア:

[(1, 21301774), (2, 10650887), (13, 1638598), (19, 1121146), (26, 819299), (31, 687154), (38, 560573), (62, 343577), (107, 199082), (169, 126046), (214, 99541), (247, 86242), (338, 63023), (403, 52858), (494, 43121), (589, 36166), (806, 26429), (1178, 18083), (1391, 15314), (2033, 10478), (2782, 7657), (3211, 6634), (3317, 6422), (4066, 5239)]