21980268

素因数分解:

$2^2\times 3^3\times {\mathrm{271}}^1\times {\mathrm{751}}^1$

素因数の和:1035

約数の個数: 48

約数和(自身を含む): 57272320

約数和(自身を除く): 35292052

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 271, 542, 751, 813, 1084, 1502, 1626, 2253, 2439, 3004, 3252, 4506, 4878, 6759, 7317, 9012, 9756, 13518, 14634, 20277, 27036, 29268, 40554, 81108, 203521, 407042, 610563, 814084, 1221126, 1831689, 2442252, 3663378, 5495067, 7326756, 10990134, 21980268]

約数ペア:

[(1, 21980268), (2, 10990134), (3, 7326756), (4, 5495067), (6, 3663378), (9, 2442252), (12, 1831689), (18, 1221126), (27, 814084), (36, 610563), (54, 407042), (108, 203521), (271, 81108), (542, 40554), (751, 29268), (813, 27036), (1084, 20277), (1502, 14634), (1626, 13518), (2253, 9756), (2439, 9012), (3004, 7317), (3252, 6759), (4506, 4878)]