215515461

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{540139}}^1$

素因数の和:540168

約数の個数: 16

約数和(自身を含む): 345689600

約数和(自身を除く): 130174139

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 540139, 1620417, 3780973, 10262641, 11342919, 30787923, 71838487, 215515461]

約数ペア:

[(1, 215515461), (3, 71838487), (7, 30787923), (19, 11342919), (21, 10262641), (57, 3780973), (133, 1620417), (399, 540139)]