20501985

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{6733}}^1$

素因数の和:6777

約数の個数: 32

約数和(自身を含む): 38787840

約数和(自身を除く): 18285855

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 87, 105, 145, 203, 435, 609, 1015, 3045, 6733, 20199, 33665, 47131, 100995, 141393, 195257, 235655, 585771, 706965, 976285, 1366799, 2928855, 4100397, 6833995, 20501985]

約数ペア:

[(1, 20501985), (3, 6833995), (5, 4100397), (7, 2928855), (15, 1366799), (21, 976285), (29, 706965), (35, 585771), (87, 235655), (105, 195257), (145, 141393), (203, 100995), (435, 47131), (609, 33665), (1015, 20199), (3045, 6733)]