19737255

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 34924320

約数和(自身を除く): 15187065

約数列:

[1, 3, 5, 15, 17, 29, 51, 85, 87, 145, 157, 255, 289, 435, 471, 493, 785, 867, 1445, 1479, 2355, 2465, 2669, 4335, 4553, 7395, 8007, 8381, 13345, 13659, 22765, 25143, 40035, 41905, 45373, 68295, 77401, 125715, 136119, 226865, 232203, 387005, 680595, 1161015, 1315817, 3947451, 6579085, 19737255]

約数ペア:

[(1, 19737255), (3, 6579085), (5, 3947451), (15, 1315817), (17, 1161015), (29, 680595), (51, 387005), (85, 232203), (87, 226865), (145, 136119), (157, 125715), (255, 77401), (289, 68295), (435, 45373), (471, 41905), (493, 40035), (785, 25143), (867, 22765), (1445, 13659), (1479, 13345), (2355, 8381), (2465, 8007), (2669, 7395), (4335, 4553)]