19653039

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{347}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 34744320

約数和(自身を除く): 15091281

約数列:

[1, 3, 7, 9, 21, 29, 31, 63, 87, 93, 203, 217, 261, 279, 347, 609, 651, 899, 1041, 1827, 1953, 2429, 2697, 3123, 6293, 7287, 8091, 10063, 10757, 18879, 21861, 30189, 32271, 56637, 70441, 75299, 90567, 96813, 211323, 225897, 311953, 633969, 677691, 935859, 2183671, 2807577, 6551013, 19653039]

約数ペア:

[(1, 19653039), (3, 6551013), (7, 2807577), (9, 2183671), (21, 935859), (29, 677691), (31, 633969), (63, 311953), (87, 225897), (93, 211323), (203, 96813), (217, 90567), (261, 75299), (279, 70441), (347, 56637), (609, 32271), (651, 30189), (899, 21861), (1041, 18879), (1827, 10757), (1953, 10063), (2429, 8091), (2697, 7287), (3123, 6293)]