77778897

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1\times {\mathrm{271}}^1$

素因数の和:533

約数の個数: 32

約数和(自身を含む): 121159680

約数和(自身を除く): 43380783

約数列:

[1, 3, 7, 21, 79, 173, 237, 271, 519, 553, 813, 1211, 1659, 1897, 3633, 5691, 13667, 21409, 41001, 46883, 64227, 95669, 140649, 149863, 287007, 328181, 449589, 984543, 3703757, 11111271, 25926299, 77778897]

約数ペア:

[(1, 77778897), (3, 25926299), (7, 11111271), (21, 3703757), (79, 984543), (173, 449589), (237, 328181), (271, 287007), (519, 149863), (553, 140649), (813, 95669), (1211, 64227), (1659, 46883), (1897, 41001), (3633, 21409), (5691, 13667)]