20904033

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1$

素因数の和:365

約数の個数: 32

約数和(自身を含む): 31352832

約数和(自身を除く): 10448799

約数列:

[1, 3, 17, 23, 51, 69, 71, 213, 251, 391, 753, 1173, 1207, 1633, 3621, 4267, 4899, 5773, 12801, 17319, 17821, 27761, 53463, 83283, 98141, 294423, 302957, 409883, 908871, 1229649, 6968011, 20904033]

約数ペア:

[(1, 20904033), (3, 6968011), (17, 1229649), (23, 908871), (51, 409883), (69, 302957), (71, 294423), (213, 98141), (251, 83283), (391, 53463), (753, 27761), (1173, 17821), (1207, 17319), (1633, 12801), (3621, 5773), (4267, 4899)]