21603088

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{367}}^1$

素因数の和:671

約数の個数: 40

約数和(自身を含む): 45358208

約数和(自身を除く): 23755120

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 283, 367, 566, 734, 1132, 1468, 2264, 2936, 3679, 4528, 4771, 5872, 7358, 9542, 14716, 19084, 29432, 38168, 58864, 76336, 103861, 207722, 415444, 830888, 1350193, 1661776, 2700386, 5400772, 10801544, 21603088]

約数ペア:

[(1, 21603088), (2, 10801544), (4, 5400772), (8, 2700386), (13, 1661776), (16, 1350193), (26, 830888), (52, 415444), (104, 207722), (208, 103861), (283, 76336), (367, 58864), (566, 38168), (734, 29432), (1132, 19084), (1468, 14716), (2264, 9542), (2936, 7358), (3679, 5872), (4528, 4771)]