21501960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{3037}}^1$

素因数の和:3110

約数の個数: 64

約数和(自身を含む): 65620800

約数和(自身を除く): 44118840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 59, 60, 118, 120, 177, 236, 295, 354, 472, 590, 708, 885, 1180, 1416, 1770, 2360, 3037, 3540, 6074, 7080, 9111, 12148, 15185, 18222, 24296, 30370, 36444, 45555, 60740, 72888, 91110, 121480, 179183, 182220, 358366, 364440, 537549, 716732, 895915, 1075098, 1433464, 1791830, 2150196, 2687745, 3583660, 4300392, 5375490, 7167320, 10750980, 21501960]

約数ペア:

[(1, 21501960), (2, 10750980), (3, 7167320), (4, 5375490), (5, 4300392), (6, 3583660), (8, 2687745), (10, 2150196), (12, 1791830), (15, 1433464), (20, 1075098), (24, 895915), (30, 716732), (40, 537549), (59, 364440), (60, 358366), (118, 182220), (120, 179183), (177, 121480), (236, 91110), (295, 72888), (354, 60740), (472, 45555), (590, 36444), (708, 30370), (885, 24296), (1180, 18222), (1416, 15185), (1770, 12148), (2360, 9111), (3037, 7080), (3540, 6074)]