1999431

素因数分解:

$3^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:236

約数の個数: 32

約数和(自身を含む): 3456000

約数和(自身を除く): 1456569

約数列:

[1, 3, 7, 9, 21, 27, 63, 71, 149, 189, 213, 447, 497, 639, 1043, 1341, 1491, 1917, 3129, 4023, 4473, 9387, 10579, 13419, 28161, 31737, 74053, 95211, 222159, 285633, 666477, 1999431]

約数ペア:

[(1, 1999431), (3, 666477), (7, 285633), (9, 222159), (21, 95211), (27, 74053), (63, 31737), (71, 28161), (149, 13419), (189, 10579), (213, 9387), (447, 4473), (497, 4023), (639, 3129), (1043, 1917), (1341, 1491)]