21300900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1$

素因数の和:174

約数の個数: 144

約数和(自身を含む): 67287360

約数和(自身を除く): 45986460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 25, 30, 37, 38, 50, 57, 60, 74, 75, 76, 95, 100, 101, 111, 114, 148, 150, 185, 190, 202, 222, 228, 285, 300, 303, 370, 380, 404, 444, 475, 505, 555, 570, 606, 703, 740, 925, 950, 1010, 1110, 1140, 1212, 1406, 1425, 1515, 1850, 1900, 1919, 2020, 2109, 2220, 2525, 2775, 2812, 2850, 3030, 3515, 3700, 3737, 3838, 4218, 5050, 5550, 5700, 5757, 6060, 7030, 7474, 7575, 7676, 8436, 9595, 10100, 10545, 11100, 11211, 11514, 14060, 14948, 15150, 17575, 18685, 19190, 21090, 22422, 23028, 28785, 30300, 35150, 37370, 38380, 42180, 44844, 47975, 52725, 56055, 57570, 70300, 71003, 74740, 93425, 95950, 105450, 112110, 115140, 142006, 143925, 186850, 191900, 210900, 213009, 224220, 280275, 284012, 287850, 355015, 373700, 426018, 560550, 575700, 710030, 852036, 1065045, 1121100, 1420060, 1775075, 2130090, 3550150, 4260180, 5325225, 7100300, 10650450, 21300900]

約数ペア:

[(1, 21300900), (2, 10650450), (3, 7100300), (4, 5325225), (5, 4260180), (6, 3550150), (10, 2130090), (12, 1775075), (15, 1420060), (19, 1121100), (20, 1065045), (25, 852036), (30, 710030), (37, 575700), (38, 560550), (50, 426018), (57, 373700), (60, 355015), (74, 287850), (75, 284012), (76, 280275), (95, 224220), (100, 213009), (101, 210900), (111, 191900), (114, 186850), (148, 143925), (150, 142006), (185, 115140), (190, 112110), (202, 105450), (222, 95950), (228, 93425), (285, 74740), (300, 71003), (303, 70300), (370, 57570), (380, 56055), (404, 52725), (444, 47975), (475, 44844), (505, 42180), (555, 38380), (570, 37370), (606, 35150), (703, 30300), (740, 28785), (925, 23028), (950, 22422), (1010, 21090), (1110, 19190), (1140, 18685), (1212, 17575), (1406, 15150), (1425, 14948), (1515, 14060), (1850, 11514), (1900, 11211), (1919, 11100), (2020, 10545), (2109, 10100), (2220, 9595), (2525, 8436), (2775, 7676), (2812, 7575), (2850, 7474), (3030, 7030), (3515, 6060), (3700, 5757), (3737, 5700), (3838, 5550), (4218, 5050)]