20573679

素因数分解:

$3^1\times 7^2\times {\mathrm{173}}^1\times {\mathrm{809}}^1$

素因数の和:999

約数の個数: 24

約数和(自身を含む): 32134320

約数和(自身を除く): 11560641

約数列:

[1, 3, 7, 21, 49, 147, 173, 519, 809, 1211, 2427, 3633, 5663, 8477, 16989, 25431, 39641, 118923, 139957, 419871, 979699, 2939097, 6857893, 20573679]

約数ペア:

[(1, 20573679), (3, 6857893), (7, 2939097), (21, 979699), (49, 419871), (147, 139957), (173, 118923), (519, 39641), (809, 25431), (1211, 16989), (2427, 8477), (3633, 5663)]