21193185

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{433}}^1$

素因数の和:705

約数の個数: 32

約数和(自身を含む): 36747648

約数和(自身を除く): 15554463

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 251, 433, 753, 1255, 1299, 2165, 3263, 3765, 5629, 6495, 9789, 16315, 16887, 28145, 48945, 84435, 108683, 326049, 543415, 1412879, 1630245, 4238637, 7064395, 21193185]

約数ペア:

[(1, 21193185), (3, 7064395), (5, 4238637), (13, 1630245), (15, 1412879), (39, 543415), (65, 326049), (195, 108683), (251, 84435), (433, 48945), (753, 28145), (1255, 16887), (1299, 16315), (2165, 9789), (3263, 6495), (3765, 5629)]