21496563368

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{651727}}^1$

素因数の和:651790

約数の個数: 64

約数和(自身を含む): 50052710400

約数和(自身を除く): 28556147032

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 31, 38, 56, 62, 76, 124, 133, 152, 217, 248, 266, 434, 532, 589, 868, 1064, 1178, 1736, 2356, 4123, 4712, 8246, 16492, 32984, 651727, 1303454, 2606908, 4562089, 5213816, 9124178, 12382813, 18248356, 20203537, 24765626, 36496712, 40407074, 49531252, 80814148, 86679691, 99062504, 141424759, 161628296, 173359382, 282849518, 346718764, 383867203, 565699036, 693437528, 767734406, 1131398072, 1535468812, 2687070421, 3070937624, 5374140842, 10748281684, 21496563368]

約数ペア:

[(1, 21496563368), (2, 10748281684), (4, 5374140842), (7, 3070937624), (8, 2687070421), (14, 1535468812), (19, 1131398072), (28, 767734406), (31, 693437528), (38, 565699036), (56, 383867203), (62, 346718764), (76, 282849518), (124, 173359382), (133, 161628296), (152, 141424759), (217, 99062504), (248, 86679691), (266, 80814148), (434, 49531252), (532, 40407074), (589, 36496712), (868, 24765626), (1064, 20203537), (1178, 18248356), (1736, 12382813), (2356, 9124178), (4123, 5213816), (4712, 4562089), (8246, 2606908), (16492, 1303454), (32984, 651727)]