20280965313

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{50829487}}^1$

素因数の和:50829516

約数の個数: 16

約数和(自身を含む): 32530872320

約数和(自身を除く): 12249907007

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 50829487, 152488461, 355806409, 965760253, 1067419227, 2897280759, 6760321771, 20280965313]

約数ペア:

[(1, 20280965313), (3, 6760321771), (7, 2897280759), (19, 1067419227), (21, 965760253), (57, 355806409), (133, 152488461), (399, 50829487)]