20668518

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{88327}}^1$

素因数の和:88348

約数の個数: 24

約数和(自身を含む): 48227088

約数和(自身を除く): 27558570

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 88327, 176654, 264981, 529962, 794943, 1148251, 1589886, 2296502, 3444753, 6889506, 10334259, 20668518]

約数ペア:

[(1, 20668518), (2, 10334259), (3, 6889506), (6, 3444753), (9, 2296502), (13, 1589886), (18, 1148251), (26, 794943), (39, 529962), (78, 264981), (117, 176654), (234, 88327)]