21000786780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{6604021}}^1$

素因数の和:6604086

約数の個数: 48

約数和(自身を含む): 59911687584

約数和(自身を除く): 38910900804

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 53, 60, 106, 159, 212, 265, 318, 530, 636, 795, 1060, 1590, 3180, 6604021, 13208042, 19812063, 26416084, 33020105, 39624126, 66040210, 79248252, 99060315, 132080420, 198120630, 350013113, 396241260, 700026226, 1050039339, 1400052452, 1750065565, 2100078678, 3500131130, 4200157356, 5250196695, 7000262260, 10500393390, 21000786780]

約数ペア:

[(1, 21000786780), (2, 10500393390), (3, 7000262260), (4, 5250196695), (5, 4200157356), (6, 3500131130), (10, 2100078678), (12, 1750065565), (15, 1400052452), (20, 1050039339), (30, 700026226), (53, 396241260), (60, 350013113), (106, 198120630), (159, 132080420), (212, 99060315), (265, 79248252), (318, 66040210), (530, 39624126), (636, 33020105), (795, 26416084), (1060, 19812063), (1590, 13208042), (3180, 6604021)]