21974440

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{1733}}^1$

素因数の和:2061

約数の個数: 32

約数和(自身を含む): 49627080

約数和(自身を除く): 27652640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 1733, 2536, 3170, 3466, 6340, 6932, 8665, 12680, 13864, 17330, 34660, 69320, 549361, 1098722, 2197444, 2746805, 4394888, 5493610, 10987220, 21974440]

約数ペア:

[(1, 21974440), (2, 10987220), (4, 5493610), (5, 4394888), (8, 2746805), (10, 2197444), (20, 1098722), (40, 549361), (317, 69320), (634, 34660), (1268, 17330), (1585, 13864), (1733, 12680), (2536, 8665), (3170, 6932), (3466, 6340)]