20768265

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{21977}}^1$

素因数の和:21998

約数の個数: 32

約数和(自身を含む): 42197760

約数和(自身を除く): 21429495

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 21977, 65931, 109885, 153839, 197793, 329655, 461517, 593379, 769195, 988965, 1384551, 2307585, 2966895, 4153653, 6922755, 20768265]

約数ペア:

[(1, 20768265), (3, 6922755), (5, 4153653), (7, 2966895), (9, 2307585), (15, 1384551), (21, 988965), (27, 769195), (35, 593379), (45, 461517), (63, 329655), (105, 197793), (135, 153839), (189, 109885), (315, 65931), (945, 21977)]