21108500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1$

素因数の和:226

約数の個数: 96

約数和(自身を含む): 54442752

約数和(自身を除く): 33334252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 37, 50, 70, 74, 100, 125, 140, 148, 163, 175, 185, 250, 259, 326, 350, 370, 500, 518, 652, 700, 740, 815, 875, 925, 1036, 1141, 1295, 1630, 1750, 1850, 2282, 2590, 3260, 3500, 3700, 4075, 4564, 4625, 5180, 5705, 6031, 6475, 8150, 9250, 11410, 12062, 12950, 16300, 18500, 20375, 22820, 24124, 25900, 28525, 30155, 32375, 40750, 42217, 57050, 60310, 64750, 81500, 84434, 114100, 120620, 129500, 142625, 150775, 168868, 211085, 285250, 301550, 422170, 570500, 603100, 753875, 844340, 1055425, 1507750, 2110850, 3015500, 4221700, 5277125, 10554250, 21108500]

約数ペア:

[(1, 21108500), (2, 10554250), (4, 5277125), (5, 4221700), (7, 3015500), (10, 2110850), (14, 1507750), (20, 1055425), (25, 844340), (28, 753875), (35, 603100), (37, 570500), (50, 422170), (70, 301550), (74, 285250), (100, 211085), (125, 168868), (140, 150775), (148, 142625), (163, 129500), (175, 120620), (185, 114100), (250, 84434), (259, 81500), (326, 64750), (350, 60310), (370, 57050), (500, 42217), (518, 40750), (652, 32375), (700, 30155), (740, 28525), (815, 25900), (875, 24124), (925, 22820), (1036, 20375), (1141, 18500), (1295, 16300), (1630, 12950), (1750, 12062), (1850, 11410), (2282, 9250), (2590, 8150), (3260, 6475), (3500, 6031), (3700, 5705), (4075, 5180), (4564, 4625)]