20193848

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{491}}^1$

素因数の和:647

約数の個数: 32

約数和(自身を含む): 39054960

約数和(自身を除く): 18861112

約数列:

[1, 2, 4, 8, 53, 97, 106, 194, 212, 388, 424, 491, 776, 982, 1964, 3928, 5141, 10282, 20564, 26023, 41128, 47627, 52046, 95254, 104092, 190508, 208184, 381016, 2524231, 5048462, 10096924, 20193848]

約数ペア:

[(1, 20193848), (2, 10096924), (4, 5048462), (8, 2524231), (53, 381016), (97, 208184), (106, 190508), (194, 104092), (212, 95254), (388, 52046), (424, 47627), (491, 41128), (776, 26023), (982, 20564), (1964, 10282), (3928, 5141)]