21388620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1409}}^1$

素因数の和:1455

約数の個数: 96

約数和(自身を含む): 68221440

約数和(自身を除く): 46832820

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, 132, 138, 165, 220, 230, 253, 276, 330, 345, 460, 506, 660, 690, 759, 1012, 1265, 1380, 1409, 1518, 2530, 2818, 3036, 3795, 4227, 5060, 5636, 7045, 7590, 8454, 14090, 15180, 15499, 16908, 21135, 28180, 30998, 32407, 42270, 46497, 61996, 64814, 77495, 84540, 92994, 97221, 129628, 154990, 162035, 185988, 194442, 232485, 309980, 324070, 356477, 388884, 464970, 486105, 648140, 712954, 929940, 972210, 1069431, 1425908, 1782385, 1944420, 2138862, 3564770, 4277724, 5347155, 7129540, 10694310, 21388620]

約数ペア:

[(1, 21388620), (2, 10694310), (3, 7129540), (4, 5347155), (5, 4277724), (6, 3564770), (10, 2138862), (11, 1944420), (12, 1782385), (15, 1425908), (20, 1069431), (22, 972210), (23, 929940), (30, 712954), (33, 648140), (44, 486105), (46, 464970), (55, 388884), (60, 356477), (66, 324070), (69, 309980), (92, 232485), (110, 194442), (115, 185988), (132, 162035), (138, 154990), (165, 129628), (220, 97221), (230, 92994), (253, 84540), (276, 77495), (330, 64814), (345, 61996), (460, 46497), (506, 42270), (660, 32407), (690, 30998), (759, 28180), (1012, 21135), (1265, 16908), (1380, 15499), (1409, 15180), (1518, 14090), (2530, 8454), (2818, 7590), (3036, 7045), (3795, 5636), (4227, 5060)]