21404222

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{1201}}^1$

素因数の和:1296

約数の個数: 32

約数和(自身を含む): 39233280

約数和(自身を除く): 17829058

約数列:

[1, 2, 7, 14, 19, 38, 67, 133, 134, 266, 469, 938, 1201, 1273, 2402, 2546, 8407, 8911, 16814, 17822, 22819, 45638, 80467, 159733, 160934, 319466, 563269, 1126538, 1528873, 3057746, 10702111, 21404222]

約数ペア:

[(1, 21404222), (2, 10702111), (7, 3057746), (14, 1528873), (19, 1126538), (38, 563269), (67, 319466), (133, 160934), (134, 159733), (266, 80467), (469, 45638), (938, 22819), (1201, 17822), (1273, 16814), (2402, 8911), (2546, 8407)]