21914680

素因数分解:

$2^3\times 5^1\times {\mathrm{653}}^1\times {\mathrm{839}}^1$

素因数の和:1503

約数の個数: 32

約数和(自身を含む): 49442400

約数和(自身を除く): 27527720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 653, 839, 1306, 1678, 2612, 3265, 3356, 4195, 5224, 6530, 6712, 8390, 13060, 16780, 26120, 33560, 547867, 1095734, 2191468, 2739335, 4382936, 5478670, 10957340, 21914680]

約数ペア:

[(1, 21914680), (2, 10957340), (4, 5478670), (5, 4382936), (8, 2739335), (10, 2191468), (20, 1095734), (40, 547867), (653, 33560), (839, 26120), (1306, 16780), (1678, 13060), (2612, 8390), (3265, 6712), (3356, 6530), (4195, 5224)]