21680244

素因数分解:

$2^2\times 3^3\times {\mathrm{197}}^1\times {\mathrm{1019}}^1$

素因数の和:1229

約数の個数: 48

約数和(自身を含む): 56548800

約数和(自身を除く): 34868556

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 197, 394, 591, 788, 1019, 1182, 1773, 2038, 2364, 3057, 3546, 4076, 5319, 6114, 7092, 9171, 10638, 12228, 18342, 21276, 27513, 36684, 55026, 110052, 200743, 401486, 602229, 802972, 1204458, 1806687, 2408916, 3613374, 5420061, 7226748, 10840122, 21680244]

約数ペア:

[(1, 21680244), (2, 10840122), (3, 7226748), (4, 5420061), (6, 3613374), (9, 2408916), (12, 1806687), (18, 1204458), (27, 802972), (36, 602229), (54, 401486), (108, 200743), (197, 110052), (394, 55026), (591, 36684), (788, 27513), (1019, 21276), (1182, 18342), (1773, 12228), (2038, 10638), (2364, 9171), (3057, 7092), (3546, 6114), (4076, 5319)]