20813928

素因数分解:

$2^3\times 3^1\times {\mathrm{223}}^1\times {\mathrm{3889}}^1$

素因数の和:4121

約数の個数: 32

約数和(自身を含む): 52281600

約数和(自身を除く): 31467672

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 223, 446, 669, 892, 1338, 1784, 2676, 3889, 5352, 7778, 11667, 15556, 23334, 31112, 46668, 93336, 867247, 1734494, 2601741, 3468988, 5203482, 6937976, 10406964, 20813928]

約数ペア:

[(1, 20813928), (2, 10406964), (3, 6937976), (4, 5203482), (6, 3468988), (8, 2601741), (12, 1734494), (24, 867247), (223, 93336), (446, 46668), (669, 31112), (892, 23334), (1338, 15556), (1784, 11667), (2676, 7778), (3889, 5352)]