16861719

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1$

素因数の和:387

約数の個数: 32

約数和(自身を含む): 26763264

約数和(自身を除く): 9901545

約数列:

[1, 3, 7, 21, 43, 71, 129, 213, 263, 301, 497, 789, 903, 1491, 1841, 3053, 5523, 9159, 11309, 18673, 21371, 33927, 56019, 64113, 79163, 130711, 237489, 392133, 802939, 2408817, 5620573, 16861719]

約数ペア:

[(1, 16861719), (3, 5620573), (7, 2408817), (21, 802939), (43, 392133), (71, 237489), (129, 130711), (213, 79163), (263, 64113), (301, 56019), (497, 33927), (789, 21371), (903, 18673), (1491, 11309), (1841, 9159), (3053, 5523)]