720935829

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{1405333}}^1$

素因数の和:1405361

約数の個数: 16

約数和(自身を含む): 1124267200

約数和(自身を除く): 403331371

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 1405333, 4215999, 12647997, 26701327, 37943991, 80103981, 240311943, 720935829]

約数ペア:

[(1, 720935829), (3, 240311943), (9, 80103981), (19, 37943991), (27, 26701327), (57, 12647997), (171, 4215999), (513, 1405333)]