21972370

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4421}}^1$

素因数の和:4506

約数の個数: 32

約数和(自身を含む): 45847296

約数和(自身を除く): 23874926

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 71, 142, 355, 497, 710, 994, 2485, 4421, 4970, 8842, 22105, 30947, 44210, 61894, 154735, 309470, 313891, 627782, 1569455, 2197237, 3138910, 4394474, 10986185, 21972370]

約数ペア:

[(1, 21972370), (2, 10986185), (5, 4394474), (7, 3138910), (10, 2197237), (14, 1569455), (35, 627782), (70, 313891), (71, 309470), (142, 154735), (355, 61894), (497, 44210), (710, 30947), (994, 22105), (2485, 8842), (4421, 4970)]