20973345

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{509}}^1$

素因数の和:625

約数の個数: 32

約数和(自身を含む): 34957440

約数和(自身を除く): 13984095

約数列:

[1, 3, 5, 15, 41, 67, 123, 201, 205, 335, 509, 615, 1005, 1527, 2545, 2747, 7635, 8241, 13735, 20869, 34103, 41205, 62607, 102309, 104345, 170515, 313035, 511545, 1398223, 4194669, 6991115, 20973345]

約数ペア:

[(1, 20973345), (3, 6991115), (5, 4194669), (15, 1398223), (41, 511545), (67, 313035), (123, 170515), (201, 104345), (205, 102309), (335, 62607), (509, 41205), (615, 34103), (1005, 20869), (1527, 13735), (2545, 8241), (2747, 7635)]