216668889

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{439}}^1$

素因数の和:566

約数の個数: 48

約数和(自身を含む): 340454400

約数和(自身を除く): 123785511

約数列:

[1, 3, 9, 29, 31, 61, 87, 93, 183, 261, 279, 439, 549, 899, 1317, 1769, 1891, 2697, 3951, 5307, 5673, 8091, 12731, 13609, 15921, 17019, 26779, 38193, 40827, 54839, 80337, 114579, 122481, 164517, 241011, 394661, 493551, 776591, 830149, 1183983, 2329773, 2490447, 3551949, 6989319, 7471341, 24074321, 72222963, 216668889]

約数ペア:

[(1, 216668889), (3, 72222963), (9, 24074321), (29, 7471341), (31, 6989319), (61, 3551949), (87, 2490447), (93, 2329773), (183, 1183983), (261, 830149), (279, 776591), (439, 493551), (549, 394661), (899, 241011), (1317, 164517), (1769, 122481), (1891, 114579), (2697, 80337), (3951, 54839), (5307, 40827), (5673, 38193), (8091, 26779), (12731, 17019), (13609, 15921)]