218455587

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{1409}}^1$

素因数の和:1552

約数の個数: 48

約数和(自身を含む): 380090880

約数和(自身を除く): 161635293

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 107, 161, 207, 321, 483, 749, 963, 1409, 1449, 2247, 2461, 4227, 6741, 7383, 9863, 12681, 17227, 22149, 29589, 32407, 51681, 88767, 97221, 150763, 155043, 226849, 291663, 452289, 680547, 1055341, 1356867, 2041641, 3166023, 3467549, 9498069, 10402647, 24272843, 31207941, 72818529, 218455587]

約数ペア:

[(1, 218455587), (3, 72818529), (7, 31207941), (9, 24272843), (21, 10402647), (23, 9498069), (63, 3467549), (69, 3166023), (107, 2041641), (161, 1356867), (207, 1055341), (321, 680547), (483, 452289), (749, 291663), (963, 226849), (1409, 155043), (1449, 150763), (2247, 97221), (2461, 88767), (4227, 51681), (6741, 32407), (7383, 29589), (9863, 22149), (12681, 17227)]