21345396

素因数分解:

$2^2\times 3^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1$

素因数の和:404

約数の個数: 48

約数和(自身を含む): 51179520

約数和(自身を除く): 29834124

約数列:

[1, 2, 3, 4, 6, 12, 67, 134, 139, 191, 201, 268, 278, 382, 402, 417, 556, 573, 764, 804, 834, 1146, 1668, 2292, 9313, 12797, 18626, 25594, 26549, 27939, 37252, 38391, 51188, 53098, 55878, 76782, 79647, 106196, 111756, 153564, 159294, 318588, 1778783, 3557566, 5336349, 7115132, 10672698, 21345396]

約数ペア:

[(1, 21345396), (2, 10672698), (3, 7115132), (4, 5336349), (6, 3557566), (12, 1778783), (67, 318588), (134, 159294), (139, 153564), (191, 111756), (201, 106196), (268, 79647), (278, 76782), (382, 55878), (402, 53098), (417, 51188), (556, 38391), (573, 37252), (764, 27939), (804, 26549), (834, 25594), (1146, 18626), (1668, 12797), (2292, 9313)]