21195416

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{2251}}^1$

素因数の和:2375

約数の個数: 32

約数和(自身を含む): 43778880

約数和(自身を除く): 22583464

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 107, 214, 428, 856, 1177, 2251, 2354, 4502, 4708, 9004, 9416, 18008, 24761, 49522, 99044, 198088, 240857, 481714, 963428, 1926856, 2649427, 5298854, 10597708, 21195416]

約数ペア:

[(1, 21195416), (2, 10597708), (4, 5298854), (8, 2649427), (11, 1926856), (22, 963428), (44, 481714), (88, 240857), (107, 198088), (214, 99044), (428, 49522), (856, 24761), (1177, 18008), (2251, 9416), (2354, 9004), (4502, 4708)]