21012528

素因数分解:

$2^4\times 3^1\times {\mathrm{97}}^1\times {\mathrm{4513}}^1$

素因数の和:4621

約数の個数: 40

約数和(自身を含む): 54854128

約数和(自身を除く): 33841600

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 97, 194, 291, 388, 582, 776, 1164, 1552, 2328, 4513, 4656, 9026, 13539, 18052, 27078, 36104, 54156, 72208, 108312, 216624, 437761, 875522, 1313283, 1751044, 2626566, 3502088, 5253132, 7004176, 10506264, 21012528]

約数ペア:

[(1, 21012528), (2, 10506264), (3, 7004176), (4, 5253132), (6, 3502088), (8, 2626566), (12, 1751044), (16, 1313283), (24, 875522), (48, 437761), (97, 216624), (194, 108312), (291, 72208), (388, 54156), (582, 36104), (776, 27078), (1164, 18052), (1552, 13539), (2328, 9026), (4513, 4656)]