21154714

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{1187}}^1$

素因数の和:1282

約数の個数: 32

約数和(自身を含む): 38776320

約数和(自身を除く): 17621606

約数列:

[1, 2, 7, 14, 19, 38, 67, 133, 134, 266, 469, 938, 1187, 1273, 2374, 2546, 8309, 8911, 16618, 17822, 22553, 45106, 79529, 157871, 159058, 315742, 556703, 1113406, 1511051, 3022102, 10577357, 21154714]

約数ペア:

[(1, 21154714), (2, 10577357), (7, 3022102), (14, 1511051), (19, 1113406), (38, 556703), (67, 315742), (133, 159058), (134, 157871), (266, 79529), (469, 45106), (938, 22553), (1187, 17822), (1273, 16618), (2374, 8911), (2546, 8309)]