20847855

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{941}}^1$

素因数の和:1167

約数の個数: 32

約数和(自身を含む): 38343168

約数和(自身を除く): 17495313

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 211, 633, 941, 1055, 1477, 2823, 3165, 4431, 4705, 6587, 7385, 14115, 19761, 22155, 32935, 98805, 198551, 595653, 992755, 1389857, 2978265, 4169571, 6949285, 20847855]

約数ペア:

[(1, 20847855), (3, 6949285), (5, 4169571), (7, 2978265), (15, 1389857), (21, 992755), (35, 595653), (105, 198551), (211, 98805), (633, 32935), (941, 22155), (1055, 19761), (1477, 14115), (2823, 7385), (3165, 6587), (4431, 4705)]