21491274

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{7207}}^1$

素因数の和:7290

約数の個数: 32

約数和(自身を含む): 49821696

約数和(自身を除く): 28330422

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 71, 142, 213, 426, 497, 994, 1491, 2982, 7207, 14414, 21621, 43242, 50449, 100898, 151347, 302694, 511697, 1023394, 1535091, 3070182, 3581879, 7163758, 10745637, 21491274]

約数ペア:

[(1, 21491274), (2, 10745637), (3, 7163758), (6, 3581879), (7, 3070182), (14, 1535091), (21, 1023394), (42, 511697), (71, 302694), (142, 151347), (213, 100898), (426, 50449), (497, 43242), (994, 21621), (1491, 14414), (2982, 7207)]