21336170

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^2\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:167

約数の個数: 48

約数和(自身を含む): 41389920

約数和(自身を除く): 20053750

約数列:

[1, 2, 5, 10, 29, 43, 58, 59, 86, 118, 145, 215, 290, 295, 430, 590, 841, 1247, 1682, 1711, 2494, 2537, 3422, 4205, 5074, 6235, 8410, 8555, 12470, 12685, 17110, 25370, 36163, 49619, 72326, 73573, 99238, 147146, 180815, 248095, 361630, 367865, 496190, 735730, 2133617, 4267234, 10668085, 21336170]

約数ペア:

[(1, 21336170), (2, 10668085), (5, 4267234), (10, 2133617), (29, 735730), (43, 496190), (58, 367865), (59, 361630), (86, 248095), (118, 180815), (145, 147146), (215, 99238), (290, 73573), (295, 72326), (430, 49619), (590, 36163), (841, 25370), (1247, 17110), (1682, 12685), (1711, 12470), (2494, 8555), (2537, 8410), (3422, 6235), (4205, 5074)]