21007764

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{8219}}^1$

素因数の和:8300

約数の個数: 36

約数和(自身を含む): 53857440

約数和(自身を除く): 32849676

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 142, 213, 284, 426, 639, 852, 1278, 2556, 8219, 16438, 24657, 32876, 49314, 73971, 98628, 147942, 295884, 583549, 1167098, 1750647, 2334196, 3501294, 5251941, 7002588, 10503882, 21007764]

約数ペア:

[(1, 21007764), (2, 10503882), (3, 7002588), (4, 5251941), (6, 3501294), (9, 2334196), (12, 1750647), (18, 1167098), (36, 583549), (71, 295884), (142, 147942), (213, 98628), (284, 73971), (426, 49314), (639, 32876), (852, 24657), (1278, 16438), (2556, 8219)]