21920048

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{283}}^1$

素因数の和:441

約数の個数: 40

約数和(自身を含む): 43949568

約数和(自身を除く): 22029520

約数列:

[1, 2, 4, 8, 16, 47, 94, 103, 188, 206, 283, 376, 412, 566, 752, 824, 1132, 1648, 2264, 4528, 4841, 9682, 13301, 19364, 26602, 29149, 38728, 53204, 58298, 77456, 106408, 116596, 212816, 233192, 466384, 1370003, 2740006, 5480012, 10960024, 21920048]

約数ペア:

[(1, 21920048), (2, 10960024), (4, 5480012), (8, 2740006), (16, 1370003), (47, 466384), (94, 233192), (103, 212816), (188, 116596), (206, 106408), (283, 77456), (376, 58298), (412, 53204), (566, 38728), (752, 29149), (824, 26602), (1132, 19364), (1648, 13301), (2264, 9682), (4528, 4841)]