21491217

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{269}}^2$

素因数の和:558

約数の個数: 24

約数和(自身を含む): 34862880

約数和(自身を除く): 13371663

約数列:

[1, 3, 9, 11, 27, 33, 99, 269, 297, 807, 2421, 2959, 7263, 8877, 26631, 72361, 79893, 217083, 651249, 795971, 1953747, 2387913, 7163739, 21491217]

約数ペア:

[(1, 21491217), (3, 7163739), (9, 2387913), (11, 1953747), (27, 795971), (33, 651249), (99, 217083), (269, 79893), (297, 72361), (807, 26631), (2421, 8877), (2959, 7263)]