291212739

素因数分解:

$3^4\times {\mathrm{457}}^1\times {\mathrm{7867}}^1$

素因数の和:8336

約数の個数: 20

約数和(自身を含む): 436028824

約数和(自身を除く): 144816085

約数列:

[1, 3, 9, 27, 81, 457, 1371, 4113, 7867, 12339, 23601, 37017, 70803, 212409, 637227, 3595219, 10785657, 32356971, 97070913, 291212739]

約数ペア:

[(1, 291212739), (3, 97070913), (9, 32356971), (27, 10785657), (81, 3595219), (457, 637227), (1371, 212409), (4113, 70803), (7867, 37017), (12339, 23601)]