20246877

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 35493120

約数和(自身を除く): 15246243

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 89, 157, 161, 207, 267, 471, 483, 623, 801, 1099, 1413, 1449, 1869, 2047, 3297, 3611, 5607, 6141, 9891, 10833, 13973, 14329, 18423, 25277, 32499, 41919, 42987, 75831, 97811, 125757, 128961, 227493, 293433, 321379, 880299, 964137, 2249653, 2892411, 6748959, 20246877]

約数ペア:

[(1, 20246877), (3, 6748959), (7, 2892411), (9, 2249653), (21, 964137), (23, 880299), (63, 321379), (69, 293433), (89, 227493), (157, 128961), (161, 125757), (207, 97811), (267, 75831), (471, 42987), (483, 41919), (623, 32499), (801, 25277), (1099, 18423), (1413, 14329), (1449, 13973), (1869, 10833), (2047, 9891), (3297, 6141), (3611, 5607)]