21069955

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{9643}}^1$

素因数の和:9690

約数の個数: 16

約数和(自身を含む): 27774720

約数和(自身を除く): 6704765

約数列:

[1, 5, 19, 23, 95, 115, 437, 2185, 9643, 48215, 183217, 221789, 916085, 1108945, 4213991, 21069955]

約数ペア:

[(1, 21069955), (5, 4213991), (19, 1108945), (23, 916085), (95, 221789), (115, 183217), (437, 48215), (2185, 9643)]