21650648

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{1303}}^1$

素因数の和:1407

約数の個数: 32

約数和(自身を含む): 42562560

約数和(自身を除く): 20911912

約数列:

[1, 2, 4, 8, 31, 62, 67, 124, 134, 248, 268, 536, 1303, 2077, 2606, 4154, 5212, 8308, 10424, 16616, 40393, 80786, 87301, 161572, 174602, 323144, 349204, 698408, 2706331, 5412662, 10825324, 21650648]

約数ペア:

[(1, 21650648), (2, 10825324), (4, 5412662), (8, 2706331), (31, 698408), (62, 349204), (67, 323144), (124, 174602), (134, 161572), (248, 87301), (268, 80786), (536, 40393), (1303, 16616), (2077, 10424), (2606, 8308), (4154, 5212)]