20318732

素因数分解:

$2^2\times 7^2\times {\mathrm{83}}^1\times {\mathrm{1249}}^1$

素因数の和:1350

約数の個数: 36

約数和(自身を含む): 41895000

約数和(自身を除く): 21576268

約数列:

[1, 2, 4, 7, 14, 28, 49, 83, 98, 166, 196, 332, 581, 1162, 1249, 2324, 2498, 4067, 4996, 8134, 8743, 16268, 17486, 34972, 61201, 103667, 122402, 207334, 244804, 414668, 725669, 1451338, 2902676, 5079683, 10159366, 20318732]

約数ペア:

[(1, 20318732), (2, 10159366), (4, 5079683), (7, 2902676), (14, 1451338), (28, 725669), (49, 414668), (83, 244804), (98, 207334), (166, 122402), (196, 103667), (332, 61201), (581, 34972), (1162, 17486), (1249, 16268), (2324, 8743), (2498, 8134), (4067, 4996)]