20977432

素因数分解:

$2^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{5591}}^1$

素因数の和:5671

約数の個数: 32

約数和(自身を含む): 45630720

約数和(自身を除く): 24653288

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 67, 134, 268, 469, 536, 938, 1876, 3752, 5591, 11182, 22364, 39137, 44728, 78274, 156548, 313096, 374597, 749194, 1498388, 2622179, 2996776, 5244358, 10488716, 20977432]

約数ペア:

[(1, 20977432), (2, 10488716), (4, 5244358), (7, 2996776), (8, 2622179), (14, 1498388), (28, 749194), (56, 374597), (67, 313096), (134, 156548), (268, 78274), (469, 44728), (536, 39137), (938, 22364), (1876, 11182), (3752, 5591)]