21857368

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2879}}^1$

素因数の和:2971

約数の個数: 32

約数和(自身を含む): 44755200

約数和(自身を除く): 22897832

約数列:

[1, 2, 4, 8, 13, 26, 52, 73, 104, 146, 292, 584, 949, 1898, 2879, 3796, 5758, 7592, 11516, 23032, 37427, 74854, 149708, 210167, 299416, 420334, 840668, 1681336, 2732171, 5464342, 10928684, 21857368]

約数ペア:

[(1, 21857368), (2, 10928684), (4, 5464342), (8, 2732171), (13, 1681336), (26, 840668), (52, 420334), (73, 299416), (104, 210167), (146, 149708), (292, 74854), (584, 37427), (949, 23032), (1898, 11516), (2879, 7592), (3796, 5758)]