20909336

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{6121}}^1$

素因数の和:6195

約数の個数: 32

約数和(自身を含む): 45547680

約数和(自身を除く): 24638344

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 122, 244, 427, 488, 854, 1708, 3416, 6121, 12242, 24484, 42847, 48968, 85694, 171388, 342776, 373381, 746762, 1493524, 2613667, 2987048, 5227334, 10454668, 20909336]

約数ペア:

[(1, 20909336), (2, 10454668), (4, 5227334), (7, 2987048), (8, 2613667), (14, 1493524), (28, 746762), (56, 373381), (61, 342776), (122, 171388), (244, 85694), (427, 48968), (488, 42847), (854, 24484), (1708, 12242), (3416, 6121)]