19577115

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 36380448

約数和(自身を除く): 16803333

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 157, 163, 255, 471, 489, 765, 785, 815, 1413, 1467, 2355, 2445, 2669, 2771, 7065, 7335, 8007, 8313, 13345, 13855, 24021, 24939, 25591, 40035, 41565, 76773, 120105, 124695, 127955, 230319, 383865, 435047, 1151595, 1305141, 2175235, 3915423, 6525705, 19577115]

約数ペア:

[(1, 19577115), (3, 6525705), (5, 3915423), (9, 2175235), (15, 1305141), (17, 1151595), (45, 435047), (51, 383865), (85, 230319), (153, 127955), (157, 124695), (163, 120105), (255, 76773), (471, 41565), (489, 40035), (765, 25591), (785, 24939), (815, 24021), (1413, 13855), (1467, 13345), (2355, 8313), (2445, 8007), (2669, 7335), (2771, 7065)]