20916219

素因数分解:

$3^1\times {\mathrm{173}}^1\times {\mathrm{191}}^1\times {\mathrm{211}}^1$

素因数の和:578

約数の個数: 16

約数和(自身を含む): 28329984

約数和(自身を除く): 7413765

約数列:

[1, 3, 173, 191, 211, 519, 573, 633, 33043, 36503, 40301, 99129, 109509, 120903, 6972073, 20916219]

約数ペア:

[(1, 20916219), (3, 6972073), (173, 120903), (191, 109509), (211, 99129), (519, 40301), (573, 36503), (633, 33043)]