20009988

素因数分解:

$2^2\times 3^2\times {\mathrm{131}}^1\times {\mathrm{4243}}^1$

素因数の和:4384

約数の個数: 36

約数和(自身を含む): 50978928

約数和(自身を除く): 30968940

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 131, 262, 393, 524, 786, 1179, 1572, 2358, 4243, 4716, 8486, 12729, 16972, 25458, 38187, 50916, 76374, 152748, 555833, 1111666, 1667499, 2223332, 3334998, 5002497, 6669996, 10004994, 20009988]

約数ペア:

[(1, 20009988), (2, 10004994), (3, 6669996), (4, 5002497), (6, 3334998), (9, 2223332), (12, 1667499), (18, 1111666), (36, 555833), (131, 152748), (262, 76374), (393, 50916), (524, 38187), (786, 25458), (1179, 16972), (1572, 12729), (2358, 8486), (4243, 4716)]