20758554

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{439}}^1$

素因数の和:555

約数の個数: 48

約数和(自身を含む): 46949760

約数和(自身を除く): 26191206

約数列:

[1, 2, 3, 6, 9, 18, 37, 71, 74, 111, 142, 213, 222, 333, 426, 439, 639, 666, 878, 1278, 1317, 2627, 2634, 3951, 5254, 7881, 7902, 15762, 16243, 23643, 31169, 32486, 47286, 48729, 62338, 93507, 97458, 146187, 187014, 280521, 292374, 561042, 1153253, 2306506, 3459759, 6919518, 10379277, 20758554]

約数ペア:

[(1, 20758554), (2, 10379277), (3, 6919518), (6, 3459759), (9, 2306506), (18, 1153253), (37, 561042), (71, 292374), (74, 280521), (111, 187014), (142, 146187), (213, 97458), (222, 93507), (333, 62338), (426, 48729), (439, 47286), (639, 32486), (666, 31169), (878, 23643), (1278, 16243), (1317, 15762), (2627, 7902), (2634, 7881), (3951, 5254)]