21264592

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1$

素因数の和:343

約数の個数: 40

約数和(自身を含む): 42352200

約数和(自身を除く): 21087608

約数列:

[1, 2, 4, 8, 16, 89, 109, 137, 178, 218, 274, 356, 436, 548, 712, 872, 1096, 1424, 1744, 2192, 9701, 12193, 14933, 19402, 24386, 29866, 38804, 48772, 59732, 77608, 97544, 119464, 155216, 195088, 238928, 1329037, 2658074, 5316148, 10632296, 21264592]

約数ペア:

[(1, 21264592), (2, 10632296), (4, 5316148), (8, 2658074), (16, 1329037), (89, 238928), (109, 195088), (137, 155216), (178, 119464), (218, 97544), (274, 77608), (356, 59732), (436, 48772), (548, 38804), (712, 29866), (872, 24386), (1096, 19402), (1424, 14933), (1744, 12193), (2192, 9701)]