17994879

素因数分解:

$3^5\times 7^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 31449600

約数和(自身を除く): 13454721

約数列:

[1, 3, 7, 9, 21, 27, 63, 71, 81, 149, 189, 213, 243, 447, 497, 567, 639, 1043, 1341, 1491, 1701, 1917, 3129, 4023, 4473, 5751, 9387, 10579, 12069, 13419, 17253, 28161, 31737, 36207, 40257, 74053, 84483, 95211, 120771, 222159, 253449, 285633, 666477, 856899, 1999431, 2570697, 5998293, 17994879]

約数ペア:

[(1, 17994879), (3, 5998293), (7, 2570697), (9, 1999431), (21, 856899), (27, 666477), (63, 285633), (71, 253449), (81, 222159), (149, 120771), (189, 95211), (213, 84483), (243, 74053), (447, 40257), (497, 36207), (567, 31737), (639, 28161), (1043, 17253), (1341, 13419), (1491, 12069), (1701, 10579), (1917, 9387), (3129, 5751), (4023, 4473)]