21203763

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{19051}}^1$

素因数の和:19114

約数の個数: 16

約数和(自身を含む): 32921856

約数和(自身を除く): 11718093

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 19051, 57153, 133357, 400071, 1009703, 3029109, 7067921, 21203763]

約数ペア:

[(1, 21203763), (3, 7067921), (7, 3029109), (21, 1009703), (53, 400071), (159, 133357), (371, 57153), (1113, 19051)]