21385108

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{6863}}^1$

素因数の和:6927

約数の個数: 24

約数和(自身を含む): 40360320

約数和(自身を除く): 18975212

約数列:

[1, 2, 4, 19, 38, 41, 76, 82, 164, 779, 1558, 3116, 6863, 13726, 27452, 130397, 260794, 281383, 521588, 562766, 1125532, 5346277, 10692554, 21385108]

約数ペア:

[(1, 21385108), (2, 10692554), (4, 5346277), (19, 1125532), (38, 562766), (41, 521588), (76, 281383), (82, 260794), (164, 130397), (779, 27452), (1558, 13726), (3116, 6863)]