21394708

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{823}}^1$

素因数の和:991

約数の個数: 24

約数和(自身を含む): 38437952

約数和(自身を除く): 17043244

約数列:

[1, 2, 4, 67, 97, 134, 194, 268, 388, 823, 1646, 3292, 6499, 12998, 25996, 55141, 79831, 110282, 159662, 220564, 319324, 5348677, 10697354, 21394708]

約数ペア:

[(1, 21394708), (2, 10697354), (4, 5348677), (67, 319324), (97, 220564), (134, 159662), (194, 110282), (268, 79831), (388, 55141), (823, 25996), (1646, 12998), (3292, 6499)]