21990606

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{4973}}^1$

素因数の和:5056

約数の個数: 32

約数和(自身を含む): 48705408

約数和(自身を除く): 26714802

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 67, 134, 201, 402, 737, 1474, 2211, 4422, 4973, 9946, 14919, 29838, 54703, 109406, 164109, 328218, 333191, 666382, 999573, 1999146, 3665101, 7330202, 10995303, 21990606]

約数ペア:

[(1, 21990606), (2, 10995303), (3, 7330202), (6, 3665101), (11, 1999146), (22, 999573), (33, 666382), (66, 333191), (67, 328218), (134, 164109), (201, 109406), (402, 54703), (737, 29838), (1474, 14919), (2211, 9946), (4422, 4973)]