21147570

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1$

素因数の和:264

約数の個数: 96

約数和(自身を含む): 58968000

約数和(自身を除く): 37820430

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 30, 38, 45, 57, 83, 90, 95, 114, 149, 166, 171, 190, 249, 285, 298, 342, 415, 447, 498, 570, 745, 747, 830, 855, 894, 1245, 1341, 1490, 1494, 1577, 1710, 2235, 2490, 2682, 2831, 3154, 3735, 4470, 4731, 5662, 6705, 7470, 7885, 8493, 9462, 12367, 13410, 14155, 14193, 15770, 16986, 23655, 24734, 25479, 28310, 28386, 37101, 42465, 47310, 50958, 61835, 70965, 74202, 84930, 111303, 123670, 127395, 141930, 185505, 222606, 234973, 254790, 371010, 469946, 556515, 704919, 1113030, 1174865, 1409838, 2114757, 2349730, 3524595, 4229514, 7049190, 10573785, 21147570]

約数ペア:

[(1, 21147570), (2, 10573785), (3, 7049190), (5, 4229514), (6, 3524595), (9, 2349730), (10, 2114757), (15, 1409838), (18, 1174865), (19, 1113030), (30, 704919), (38, 556515), (45, 469946), (57, 371010), (83, 254790), (90, 234973), (95, 222606), (114, 185505), (149, 141930), (166, 127395), (171, 123670), (190, 111303), (249, 84930), (285, 74202), (298, 70965), (342, 61835), (415, 50958), (447, 47310), (498, 42465), (570, 37101), (745, 28386), (747, 28310), (830, 25479), (855, 24734), (894, 23655), (1245, 16986), (1341, 15770), (1490, 14193), (1494, 14155), (1577, 13410), (1710, 12367), (2235, 9462), (2490, 8493), (2682, 7885), (2831, 7470), (3154, 6705), (3735, 5662), (4470, 4731)]