21820986

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{577}}^1$

素因数の和:787

約数の個数: 48

約数和(自身を含む): 51936768

約数和(自身を除く): 30115782

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 191, 198, 382, 573, 577, 1146, 1154, 1719, 1731, 2101, 3438, 3462, 4202, 5193, 6303, 6347, 10386, 12606, 12694, 18909, 19041, 37818, 38082, 57123, 110207, 114246, 220414, 330621, 661242, 991863, 1212277, 1983726, 2424554, 3636831, 7273662, 10910493, 21820986]

約数ペア:

[(1, 21820986), (2, 10910493), (3, 7273662), (6, 3636831), (9, 2424554), (11, 1983726), (18, 1212277), (22, 991863), (33, 661242), (66, 330621), (99, 220414), (191, 114246), (198, 110207), (382, 57123), (573, 38082), (577, 37818), (1146, 19041), (1154, 18909), (1719, 12694), (1731, 12606), (2101, 10386), (3438, 6347), (3462, 6303), (4202, 5193)]