81745923

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{263}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 135184896

約数和(自身を除く): 53438973

約数列:

[1, 3, 7, 19, 21, 41, 57, 123, 133, 263, 287, 361, 399, 779, 789, 861, 1083, 1841, 2337, 2527, 4997, 5453, 5523, 7581, 10783, 14801, 14991, 16359, 32349, 34979, 44403, 75481, 94943, 103607, 104937, 204877, 226443, 284829, 310821, 614631, 664601, 1434139, 1993803, 3892663, 4302417, 11677989, 27248641, 81745923]

約数ペア:

[(1, 81745923), (3, 27248641), (7, 11677989), (19, 4302417), (21, 3892663), (41, 1993803), (57, 1434139), (123, 664601), (133, 614631), (263, 310821), (287, 284829), (361, 226443), (399, 204877), (779, 104937), (789, 103607), (861, 94943), (1083, 75481), (1841, 44403), (2337, 34979), (2527, 32349), (4997, 16359), (5453, 14991), (5523, 14801), (7581, 10783)]