20902736

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2371}}^1$

素因数の和:2427

約数の個数: 40

約数和(自身を含む): 44119200

約数和(自身を除く): 23216464

約数列:

[1, 2, 4, 8, 16, 19, 29, 38, 58, 76, 116, 152, 232, 304, 464, 551, 1102, 2204, 2371, 4408, 4742, 8816, 9484, 18968, 37936, 45049, 68759, 90098, 137518, 180196, 275036, 360392, 550072, 720784, 1100144, 1306421, 2612842, 5225684, 10451368, 20902736]

約数ペア:

[(1, 20902736), (2, 10451368), (4, 5225684), (8, 2612842), (16, 1306421), (19, 1100144), (29, 720784), (38, 550072), (58, 360392), (76, 275036), (116, 180196), (152, 137518), (232, 90098), (304, 68759), (464, 45049), (551, 37936), (1102, 18968), (2204, 9484), (2371, 8816), (4408, 4742)]