20919544

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{1259}}^1$

素因数の和:1363

約数の個数: 32

約数和(自身を含む): 41126400

約数和(自身を除く): 20206856

約数列:

[1, 2, 4, 8, 31, 62, 67, 124, 134, 248, 268, 536, 1259, 2077, 2518, 4154, 5036, 8308, 10072, 16616, 39029, 78058, 84353, 156116, 168706, 312232, 337412, 674824, 2614943, 5229886, 10459772, 20919544]

約数ペア:

[(1, 20919544), (2, 10459772), (4, 5229886), (8, 2614943), (31, 674824), (62, 337412), (67, 312232), (124, 168706), (134, 156116), (248, 84353), (268, 78058), (536, 39029), (1259, 16616), (2077, 10072), (2518, 8308), (4154, 5036)]