20916105

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{6869}}^1$

素因数の和:6913

約数の個数: 32

約数和(自身を含む): 39571200

約数和(自身を除く): 18655095

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 87, 105, 145, 203, 435, 609, 1015, 3045, 6869, 20607, 34345, 48083, 103035, 144249, 199201, 240415, 597603, 721245, 996005, 1394407, 2988015, 4183221, 6972035, 20916105]

約数ペア:

[(1, 20916105), (3, 6972035), (5, 4183221), (7, 2988015), (15, 1394407), (21, 996005), (29, 721245), (35, 597603), (87, 240415), (105, 199201), (145, 144249), (203, 103035), (435, 48083), (609, 34345), (1015, 20607), (3045, 6869)]