21907880

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{9283}}^1$

素因数の和:9353

約数の個数: 32

約数和(自身を含む): 50133600

約数和(自身を除く): 28225720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 590, 1180, 2360, 9283, 18566, 37132, 46415, 74264, 92830, 185660, 371320, 547697, 1095394, 2190788, 2738485, 4381576, 5476970, 10953940, 21907880]

約数ペア:

[(1, 21907880), (2, 10953940), (4, 5476970), (5, 4381576), (8, 2738485), (10, 2190788), (20, 1095394), (40, 547697), (59, 371320), (118, 185660), (236, 92830), (295, 74264), (472, 46415), (590, 37132), (1180, 18566), (2360, 9283)]