18839655

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{8209}}^1$

素因数の和:8240

約数の個数: 32

約数和(自身を含む): 35467200

約数和(自身を除く): 16627545

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 8209, 24627, 41045, 73881, 123135, 139553, 221643, 369405, 418659, 697765, 1108215, 1255977, 2093295, 3767931, 6279885, 18839655]

約数ペア:

[(1, 18839655), (3, 6279885), (5, 3767931), (9, 2093295), (15, 1255977), (17, 1108215), (27, 697765), (45, 418659), (51, 369405), (85, 221643), (135, 139553), (153, 123135), (255, 73881), (459, 41045), (765, 24627), (2295, 8209)]