21510736

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5443}}^1$

素因数の和:5483

約数の個数: 40

約数和(自身を含む): 47253920

約数和(自身を除く): 25743184

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 5443, 10886, 21772, 43544, 70759, 87088, 103417, 141518, 206834, 283036, 413668, 566072, 827336, 1132144, 1344421, 1654672, 2688842, 5377684, 10755368, 21510736]

約数ペア:

[(1, 21510736), (2, 10755368), (4, 5377684), (8, 2688842), (13, 1654672), (16, 1344421), (19, 1132144), (26, 827336), (38, 566072), (52, 413668), (76, 283036), (104, 206834), (152, 141518), (208, 103417), (247, 87088), (304, 70759), (494, 43544), (988, 21772), (1976, 10886), (3952, 5443)]