19298979

素因数分解:

$3^4\times 7^1\times {\mathrm{101}}^1\times {\mathrm{337}}^1$

素因数の和:457

約数の個数: 40

約数和(自身を含む): 33372768

約数和(自身を除く): 14073789

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 101, 189, 303, 337, 567, 707, 909, 1011, 2121, 2359, 2727, 3033, 6363, 7077, 8181, 9099, 19089, 21231, 27297, 34037, 57267, 63693, 102111, 191079, 238259, 306333, 714777, 918999, 2144331, 2756997, 6432993, 19298979]

約数ペア:

[(1, 19298979), (3, 6432993), (7, 2756997), (9, 2144331), (21, 918999), (27, 714777), (63, 306333), (81, 238259), (101, 191079), (189, 102111), (303, 63693), (337, 57267), (567, 34037), (707, 27297), (909, 21231), (1011, 19089), (2121, 9099), (2359, 8181), (2727, 7077), (3033, 6363)]