21137160

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{239}}^1$

素因数の和:331

約数の個数: 128

約数和(自身を含む): 70502400

約数和(自身を除く): 49365240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 67, 88, 110, 120, 132, 134, 165, 201, 220, 239, 264, 268, 330, 335, 402, 440, 478, 536, 660, 670, 717, 737, 804, 956, 1005, 1195, 1320, 1340, 1434, 1474, 1608, 1912, 2010, 2211, 2390, 2629, 2680, 2868, 2948, 3585, 3685, 4020, 4422, 4780, 5258, 5736, 5896, 7170, 7370, 7887, 8040, 8844, 9560, 10516, 11055, 13145, 14340, 14740, 15774, 16013, 17688, 21032, 22110, 26290, 28680, 29480, 31548, 32026, 39435, 44220, 48039, 52580, 63096, 64052, 78870, 80065, 88440, 96078, 105160, 128104, 157740, 160130, 176143, 192156, 240195, 315480, 320260, 352286, 384312, 480390, 528429, 640520, 704572, 880715, 960780, 1056858, 1409144, 1761430, 1921560, 2113716, 2642145, 3522860, 4227432, 5284290, 7045720, 10568580, 21137160]

約数ペア:

[(1, 21137160), (2, 10568580), (3, 7045720), (4, 5284290), (5, 4227432), (6, 3522860), (8, 2642145), (10, 2113716), (11, 1921560), (12, 1761430), (15, 1409144), (20, 1056858), (22, 960780), (24, 880715), (30, 704572), (33, 640520), (40, 528429), (44, 480390), (55, 384312), (60, 352286), (66, 320260), (67, 315480), (88, 240195), (110, 192156), (120, 176143), (132, 160130), (134, 157740), (165, 128104), (201, 105160), (220, 96078), (239, 88440), (264, 80065), (268, 78870), (330, 64052), (335, 63096), (402, 52580), (440, 48039), (478, 44220), (536, 39435), (660, 32026), (670, 31548), (717, 29480), (737, 28680), (804, 26290), (956, 22110), (1005, 21032), (1195, 17688), (1320, 16013), (1340, 15774), (1434, 14740), (1474, 14340), (1608, 13145), (1912, 11055), (2010, 10516), (2211, 9560), (2390, 8844), (2629, 8040), (2680, 7887), (2868, 7370), (2948, 7170), (3585, 5896), (3685, 5736), (4020, 5258), (4422, 4780)]