20467964

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 40715136

約数和(自身を除く): 20247172

約数列:

[1, 2, 4, 11, 22, 44, 53, 67, 106, 131, 134, 212, 262, 268, 524, 583, 737, 1166, 1441, 1474, 2332, 2882, 2948, 3551, 5764, 6943, 7102, 8777, 13886, 14204, 17554, 27772, 35108, 39061, 76373, 78122, 96547, 152746, 156244, 193094, 305492, 386188, 465181, 930362, 1860724, 5116991, 10233982, 20467964]

約数ペア:

[(1, 20467964), (2, 10233982), (4, 5116991), (11, 1860724), (22, 930362), (44, 465181), (53, 386188), (67, 305492), (106, 193094), (131, 156244), (134, 152746), (212, 96547), (262, 78122), (268, 76373), (524, 39061), (583, 35108), (737, 27772), (1166, 17554), (1441, 14204), (1474, 13886), (2332, 8777), (2882, 7102), (2948, 6943), (3551, 5764)]