17999865

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1061}}^1$

素因数の和:1114

約数の個数: 48

約数和(自身を含む): 34791120

約数和(自身を除く): 16791255

約数列:

[1, 3, 5, 9, 13, 15, 29, 39, 45, 65, 87, 117, 145, 195, 261, 377, 435, 585, 1061, 1131, 1305, 1885, 3183, 3393, 5305, 5655, 9549, 13793, 15915, 16965, 30769, 41379, 47745, 68965, 92307, 124137, 153845, 206895, 276921, 399997, 461535, 620685, 1199991, 1384605, 1999985, 3599973, 5999955, 17999865]

約数ペア:

[(1, 17999865), (3, 5999955), (5, 3599973), (9, 1999985), (13, 1384605), (15, 1199991), (29, 620685), (39, 461535), (45, 399997), (65, 276921), (87, 206895), (117, 153845), (145, 124137), (195, 92307), (261, 68965), (377, 47745), (435, 41379), (585, 30769), (1061, 16965), (1131, 15915), (1305, 13793), (1885, 9549), (3183, 5655), (3393, 5305)]