21552345

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{9391}}^1$

素因数の和:9422

約数の個数: 32

約数和(自身を含む): 40573440

約数和(自身を除く): 19021095

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 9391, 28173, 46955, 84519, 140865, 159647, 253557, 422595, 478941, 798235, 1267785, 1436823, 2394705, 4310469, 7184115, 21552345]

約数ペア:

[(1, 21552345), (3, 7184115), (5, 4310469), (9, 2394705), (15, 1436823), (17, 1267785), (27, 798235), (45, 478941), (51, 422595), (85, 253557), (135, 159647), (153, 140865), (255, 84519), (459, 46955), (765, 28173), (2295, 9391)]