21729078

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{5563}}^1$

素因数の和:5609

約数の個数: 48

約数和(自身を含む): 55550976

約数和(自身を除く): 33821898

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 31, 42, 62, 63, 93, 126, 186, 217, 279, 434, 558, 651, 1302, 1953, 3906, 5563, 11126, 16689, 33378, 38941, 50067, 77882, 100134, 116823, 172453, 233646, 344906, 350469, 517359, 700938, 1034718, 1207171, 1552077, 2414342, 3104154, 3621513, 7243026, 10864539, 21729078]

約数ペア:

[(1, 21729078), (2, 10864539), (3, 7243026), (6, 3621513), (7, 3104154), (9, 2414342), (14, 1552077), (18, 1207171), (21, 1034718), (31, 700938), (42, 517359), (62, 350469), (63, 344906), (93, 233646), (126, 172453), (186, 116823), (217, 100134), (279, 77882), (434, 50067), (558, 38941), (651, 33378), (1302, 16689), (1953, 11126), (3906, 5563)]