19509808

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2213}}^1$

素因数の和:2269

約数の個数: 40

約数和(自身を含む): 41180400

約数和(自身を除く): 21670592

約数列:

[1, 2, 4, 8, 16, 19, 29, 38, 58, 76, 116, 152, 232, 304, 464, 551, 1102, 2204, 2213, 4408, 4426, 8816, 8852, 17704, 35408, 42047, 64177, 84094, 128354, 168188, 256708, 336376, 513416, 672752, 1026832, 1219363, 2438726, 4877452, 9754904, 19509808]

約数ペア:

[(1, 19509808), (2, 9754904), (4, 4877452), (8, 2438726), (16, 1219363), (19, 1026832), (29, 672752), (38, 513416), (58, 336376), (76, 256708), (116, 168188), (152, 128354), (232, 84094), (304, 64177), (464, 42047), (551, 35408), (1102, 17704), (2204, 8852), (2213, 8816), (4408, 4426)]