21967803

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^3\times {\mathrm{101}}^1$

素因数の和:157

約数の個数: 48

約数和(自身を含む): 37870560

約数和(自身を除く): 15902757

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 101, 117, 143, 169, 303, 429, 507, 909, 1111, 1287, 1313, 1521, 1859, 2197, 3333, 3939, 5577, 6591, 9999, 11817, 14443, 16731, 17069, 19773, 24167, 43329, 51207, 72501, 129987, 153621, 187759, 217503, 221897, 563277, 665691, 1689831, 1997073, 2440867, 7322601, 21967803]

約数ペア:

[(1, 21967803), (3, 7322601), (9, 2440867), (11, 1997073), (13, 1689831), (33, 665691), (39, 563277), (99, 221897), (101, 217503), (117, 187759), (143, 153621), (169, 129987), (303, 72501), (429, 51207), (507, 43329), (909, 24167), (1111, 19773), (1287, 17069), (1313, 16731), (1521, 14443), (1859, 11817), (2197, 9999), (3333, 6591), (3939, 5577)]