21559587

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{461}}^1$

素因数の和:619

約数の個数: 32

約数和(自身を含む): 35126784

約数和(自身を除く): 13567197

約数列:

[1, 3, 7, 17, 21, 51, 119, 131, 357, 393, 461, 917, 1383, 2227, 2751, 3227, 6681, 7837, 9681, 15589, 23511, 46767, 54859, 60391, 164577, 181173, 422737, 1026647, 1268211, 3079941, 7186529, 21559587]

約数ペア:

[(1, 21559587), (3, 7186529), (7, 3079941), (17, 1268211), (21, 1026647), (51, 422737), (119, 181173), (131, 164577), (357, 60391), (393, 54859), (461, 46767), (917, 23511), (1383, 15589), (2227, 9681), (2751, 7837), (3227, 6681)]