40721219

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{131}}^1\times {\mathrm{367}}^1$

素因数の和:527

約数の個数: 24

約数和(自身を含む): 51684864

約数和(自身を除く): 10963645

約数列:

[1, 7, 11, 77, 121, 131, 367, 847, 917, 1441, 2569, 4037, 10087, 15851, 28259, 44407, 48077, 110957, 310849, 336539, 528847, 3701929, 5817317, 40721219]

約数ペア:

[(1, 40721219), (7, 5817317), (11, 3701929), (77, 528847), (121, 336539), (131, 310849), (367, 110957), (847, 48077), (917, 44407), (1441, 28259), (2569, 15851), (4037, 10087)]