20874345

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1021}}^1$

素因数の和:1105

約数の個数: 32

約数和(自身を含む): 35320320

約数和(自身を除く): 14445975

約数列:

[1, 3, 5, 15, 29, 47, 87, 141, 145, 235, 435, 705, 1021, 1363, 3063, 4089, 5105, 6815, 15315, 20445, 29609, 47987, 88827, 143961, 148045, 239935, 444135, 719805, 1391623, 4174869, 6958115, 20874345]

約数ペア:

[(1, 20874345), (3, 6958115), (5, 4174869), (15, 1391623), (29, 719805), (47, 444135), (87, 239935), (141, 148045), (145, 143961), (235, 88827), (435, 47987), (705, 29609), (1021, 20445), (1363, 15315), (3063, 6815), (4089, 5105)]