21735376

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{1259}}^1$

素因数の和:1363

約数の個数: 40

約数和(自身を含む): 45934560

約数和(自身を除く): 24199184

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 83, 104, 166, 208, 332, 664, 1079, 1259, 1328, 2158, 2518, 4316, 5036, 8632, 10072, 16367, 17264, 20144, 32734, 65468, 104497, 130936, 208994, 261872, 417988, 835976, 1358461, 1671952, 2716922, 5433844, 10867688, 21735376]

約数ペア:

[(1, 21735376), (2, 10867688), (4, 5433844), (8, 2716922), (13, 1671952), (16, 1358461), (26, 835976), (52, 417988), (83, 261872), (104, 208994), (166, 130936), (208, 104497), (332, 65468), (664, 32734), (1079, 20144), (1259, 17264), (1328, 16367), (2158, 10072), (2518, 8632), (4316, 5036)]