21220374

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{7541}}^1$

素因数の和:7620

約数の個数: 32

約数和(自身を含む): 49234176

約数和(自身を除く): 28013802

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 67, 134, 201, 402, 469, 938, 1407, 2814, 7541, 15082, 22623, 45246, 52787, 105574, 158361, 316722, 505247, 1010494, 1515741, 3031482, 3536729, 7073458, 10610187, 21220374]

約数ペア:

[(1, 21220374), (2, 10610187), (3, 7073458), (6, 3536729), (7, 3031482), (14, 1515741), (21, 1010494), (42, 505247), (67, 316722), (134, 158361), (201, 105574), (402, 52787), (469, 45246), (938, 22623), (1407, 15082), (2814, 7541)]