21391800

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{101}}^1\times {\mathrm{353}}^1$

素因数の和:473

約数の個数: 96

約数和(自身を含む): 67160880

約数和(自身を除く): 45769080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 75, 100, 101, 120, 150, 200, 202, 300, 303, 353, 404, 505, 600, 606, 706, 808, 1010, 1059, 1212, 1412, 1515, 1765, 2020, 2118, 2424, 2525, 2824, 3030, 3530, 4040, 4236, 5050, 5295, 6060, 7060, 7575, 8472, 8825, 10100, 10590, 12120, 14120, 15150, 17650, 20200, 21180, 26475, 30300, 35300, 35653, 42360, 52950, 60600, 70600, 71306, 105900, 106959, 142612, 178265, 211800, 213918, 285224, 356530, 427836, 534795, 713060, 855672, 891325, 1069590, 1426120, 1782650, 2139180, 2673975, 3565300, 4278360, 5347950, 7130600, 10695900, 21391800]

約数ペア:

[(1, 21391800), (2, 10695900), (3, 7130600), (4, 5347950), (5, 4278360), (6, 3565300), (8, 2673975), (10, 2139180), (12, 1782650), (15, 1426120), (20, 1069590), (24, 891325), (25, 855672), (30, 713060), (40, 534795), (50, 427836), (60, 356530), (75, 285224), (100, 213918), (101, 211800), (120, 178265), (150, 142612), (200, 106959), (202, 105900), (300, 71306), (303, 70600), (353, 60600), (404, 52950), (505, 42360), (600, 35653), (606, 35300), (706, 30300), (808, 26475), (1010, 21180), (1059, 20200), (1212, 17650), (1412, 15150), (1515, 14120), (1765, 12120), (2020, 10590), (2118, 10100), (2424, 8825), (2525, 8472), (2824, 7575), (3030, 7060), (3530, 6060), (4040, 5295), (4236, 5050)]