19555792

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{443}}^1$

素因数の和:571

約数の個数: 40

約数和(自身を含む): 39640320

約数和(自身を除く): 20084528

約数列:

[1, 2, 4, 8, 16, 31, 62, 89, 124, 178, 248, 356, 443, 496, 712, 886, 1424, 1772, 2759, 3544, 5518, 7088, 11036, 13733, 22072, 27466, 39427, 44144, 54932, 78854, 109864, 157708, 219728, 315416, 630832, 1222237, 2444474, 4888948, 9777896, 19555792]

約数ペア:

[(1, 19555792), (2, 9777896), (4, 4888948), (8, 2444474), (16, 1222237), (31, 630832), (62, 315416), (89, 219728), (124, 157708), (178, 109864), (248, 78854), (356, 54932), (443, 44144), (496, 39427), (712, 27466), (886, 22072), (1424, 13733), (1772, 11036), (2759, 7088), (3544, 5518)]