20553992

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{1237}}^1$

素因数の和:1341

約数の個数: 32

約数和(自身を含む): 40408320

約数和(自身を除く): 19854328

約数列:

[1, 2, 4, 8, 31, 62, 67, 124, 134, 248, 268, 536, 1237, 2077, 2474, 4154, 4948, 8308, 9896, 16616, 38347, 76694, 82879, 153388, 165758, 306776, 331516, 663032, 2569249, 5138498, 10276996, 20553992]

約数ペア:

[(1, 20553992), (2, 10276996), (4, 5138498), (8, 2569249), (31, 663032), (62, 331516), (67, 306776), (124, 165758), (134, 153388), (248, 82879), (268, 76694), (536, 38347), (1237, 16616), (2077, 9896), (2474, 8308), (4154, 4948)]