21012876

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{8221}}^1$

素因数の和:8302

約数の個数: 36

約数和(自身を含む): 53870544

約数和(自身を除く): 32857668

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 142, 213, 284, 426, 639, 852, 1278, 2556, 8221, 16442, 24663, 32884, 49326, 73989, 98652, 147978, 295956, 583691, 1167382, 1751073, 2334764, 3502146, 5253219, 7004292, 10506438, 21012876]

約数ペア:

[(1, 21012876), (2, 10506438), (3, 7004292), (4, 5253219), (6, 3502146), (9, 2334764), (12, 1751073), (18, 1167382), (36, 583691), (71, 295956), (142, 147978), (213, 98652), (284, 73989), (426, 49326), (639, 32884), (852, 24663), (1278, 16442), (2556, 8221)]