21865179

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{839}}^1$

素因数の和:939

約数の個数: 32

約数和(自身を含む): 35804160

約数和(自身を除く): 13938981

約数列:

[1, 3, 7, 17, 21, 51, 73, 119, 219, 357, 511, 839, 1241, 1533, 2517, 3723, 5873, 8687, 14263, 17619, 26061, 42789, 61247, 99841, 183741, 299523, 428729, 1041199, 1286187, 3123597, 7288393, 21865179]

約数ペア:

[(1, 21865179), (3, 7288393), (7, 3123597), (17, 1286187), (21, 1041199), (51, 428729), (73, 299523), (119, 183741), (219, 99841), (357, 61247), (511, 42789), (839, 26061), (1241, 17619), (1533, 14263), (2517, 8687), (3723, 5873)]