378156681

素因数分解:

$3^4\times 7^1\times {\mathrm{673}}^1\times {\mathrm{991}}^1$

素因数の和:1683

約数の個数: 40

約数和(自身を含む): 647212544

約数和(自身を除く): 269055863

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 673, 991, 2019, 2973, 4711, 6057, 6937, 8919, 14133, 18171, 20811, 26757, 42399, 54513, 62433, 80271, 127197, 187299, 381591, 561897, 666943, 2000829, 4668601, 6002487, 14005803, 18007461, 42017409, 54022383, 126052227, 378156681]

約数ペア:

[(1, 378156681), (3, 126052227), (7, 54022383), (9, 42017409), (21, 18007461), (27, 14005803), (63, 6002487), (81, 4668601), (189, 2000829), (567, 666943), (673, 561897), (991, 381591), (2019, 187299), (2973, 127197), (4711, 80271), (6057, 62433), (6937, 54513), (8919, 42399), (14133, 26757), (18171, 20811)]