20778646

素因数分解:

$2^1\times 7^2\times {\mathrm{149}}^1\times {\mathrm{1423}}^1$

素因数の和:1588

約数の個数: 24

約数和(自身を含む): 36525600

約数和(自身を除く): 15746954

約数列:

[1, 2, 7, 14, 49, 98, 149, 298, 1043, 1423, 2086, 2846, 7301, 9961, 14602, 19922, 69727, 139454, 212027, 424054, 1484189, 2968378, 10389323, 20778646]

約数ペア:

[(1, 20778646), (2, 10389323), (7, 2968378), (14, 1484189), (49, 424054), (98, 212027), (149, 139454), (298, 69727), (1043, 19922), (1423, 14602), (2086, 9961), (2846, 7301)]