20799315

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3583}}^1$

素因数の和:3640

約数の個数: 32

約数和(自身を含む): 37847040

約数和(自身を除く): 17047725

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 129, 135, 215, 387, 645, 1161, 1935, 3583, 5805, 10749, 17915, 32247, 53745, 96741, 154069, 161235, 462207, 483705, 770345, 1386621, 2311035, 4159863, 6933105, 20799315]

約数ペア:

[(1, 20799315), (3, 6933105), (5, 4159863), (9, 2311035), (15, 1386621), (27, 770345), (43, 483705), (45, 462207), (129, 161235), (135, 154069), (215, 96741), (387, 53745), (645, 32247), (1161, 17915), (1935, 10749), (3583, 5805)]