19410237

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{757}}^1$

素因数の和:818

約数の個数: 48

約数和(自身を含む): 35947392

約数和(自身を除く): 16537155

約数列:

[1, 3, 7, 9, 11, 21, 33, 37, 63, 77, 99, 111, 231, 259, 333, 407, 693, 757, 777, 1221, 2271, 2331, 2849, 3663, 5299, 6813, 8327, 8547, 15897, 24981, 25641, 28009, 47691, 58289, 74943, 84027, 174867, 196063, 252081, 308099, 524601, 588189, 924297, 1764567, 2156693, 2772891, 6470079, 19410237]

約数ペア:

[(1, 19410237), (3, 6470079), (7, 2772891), (9, 2156693), (11, 1764567), (21, 924297), (33, 588189), (37, 524601), (63, 308099), (77, 252081), (99, 196063), (111, 174867), (231, 84027), (259, 74943), (333, 58289), (407, 47691), (693, 28009), (757, 25641), (777, 24981), (1221, 15897), (2271, 8547), (2331, 8327), (2849, 6813), (3663, 5299)]