21206460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{127}}^1$

素因数の和:184

約数の個数: 144

約数和(自身を含む): 68640768

約数和(自身を除く): 47434308

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 23, 30, 33, 44, 46, 55, 60, 66, 69, 92, 110, 115, 121, 127, 132, 138, 165, 220, 230, 242, 253, 254, 276, 330, 345, 363, 381, 460, 484, 506, 508, 605, 635, 660, 690, 726, 759, 762, 1012, 1210, 1265, 1270, 1380, 1397, 1452, 1518, 1524, 1815, 1905, 2420, 2530, 2540, 2783, 2794, 2921, 3036, 3630, 3795, 3810, 4191, 5060, 5566, 5588, 5842, 6985, 7260, 7590, 7620, 8349, 8382, 8763, 11132, 11684, 13915, 13970, 14605, 15180, 15367, 16698, 16764, 17526, 20955, 27830, 27940, 29210, 30734, 32131, 33396, 35052, 41745, 41910, 43815, 46101, 55660, 58420, 61468, 64262, 76835, 83490, 83820, 87630, 92202, 96393, 128524, 153670, 160655, 166980, 175260, 184404, 192786, 230505, 307340, 321310, 353441, 385572, 461010, 481965, 642620, 706882, 922020, 963930, 1060323, 1413764, 1767205, 1927860, 2120646, 3534410, 4241292, 5301615, 7068820, 10603230, 21206460]

約数ペア:

[(1, 21206460), (2, 10603230), (3, 7068820), (4, 5301615), (5, 4241292), (6, 3534410), (10, 2120646), (11, 1927860), (12, 1767205), (15, 1413764), (20, 1060323), (22, 963930), (23, 922020), (30, 706882), (33, 642620), (44, 481965), (46, 461010), (55, 385572), (60, 353441), (66, 321310), (69, 307340), (92, 230505), (110, 192786), (115, 184404), (121, 175260), (127, 166980), (132, 160655), (138, 153670), (165, 128524), (220, 96393), (230, 92202), (242, 87630), (253, 83820), (254, 83490), (276, 76835), (330, 64262), (345, 61468), (363, 58420), (381, 55660), (460, 46101), (484, 43815), (506, 41910), (508, 41745), (605, 35052), (635, 33396), (660, 32131), (690, 30734), (726, 29210), (759, 27940), (762, 27830), (1012, 20955), (1210, 17526), (1265, 16764), (1270, 16698), (1380, 15367), (1397, 15180), (1452, 14605), (1518, 13970), (1524, 13915), (1815, 11684), (1905, 11132), (2420, 8763), (2530, 8382), (2540, 8349), (2783, 7620), (2794, 7590), (2921, 7260), (3036, 6985), (3630, 5842), (3795, 5588), (3810, 5566), (4191, 5060)]