20281695

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{419}}^1\times {\mathrm{461}}^1$

素因数の和:895

約数の個数: 32

約数和(自身を含む): 37255680

約数和(自身を除く): 16973985

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 419, 461, 1257, 1383, 2095, 2305, 2933, 3227, 6285, 6915, 8799, 9681, 14665, 16135, 43995, 48405, 193159, 579477, 965795, 1352113, 2897385, 4056339, 6760565, 20281695]

約数ペア:

[(1, 20281695), (3, 6760565), (5, 4056339), (7, 2897385), (15, 1352113), (21, 965795), (35, 579477), (105, 193159), (419, 48405), (461, 43995), (1257, 16135), (1383, 14665), (2095, 9681), (2305, 8799), (2933, 6915), (3227, 6285)]