21269018

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{347}}^1\times {\mathrm{1613}}^1$

素因数の和:1981

約数の個数: 16

約数和(自身を含む): 33700320

約数和(自身を除く): 12431302

約数列:

[1, 2, 19, 38, 347, 694, 1613, 3226, 6593, 13186, 30647, 61294, 559711, 1119422, 10634509, 21269018]

約数ペア:

[(1, 21269018), (2, 10634509), (19, 1119422), (38, 559711), (347, 61294), (694, 30647), (1613, 13186), (3226, 6593)]