31979997

素因数分解:

$3^2\times 7^2\times {\mathrm{127}}^1\times {\mathrm{571}}^1$

素因数の和:718

約数の個数: 36

約数和(自身を含む): 54253056

約数和(自身を除く): 22273059

約数列:

[1, 3, 7, 9, 21, 49, 63, 127, 147, 381, 441, 571, 889, 1143, 1713, 2667, 3997, 5139, 6223, 8001, 11991, 18669, 27979, 35973, 56007, 72517, 83937, 217551, 251811, 507619, 652653, 1522857, 3553333, 4568571, 10659999, 31979997]

約数ペア:

[(1, 31979997), (3, 10659999), (7, 4568571), (9, 3553333), (21, 1522857), (49, 652653), (63, 507619), (127, 251811), (147, 217551), (381, 83937), (441, 72517), (571, 56007), (889, 35973), (1143, 27979), (1713, 18669), (2667, 11991), (3997, 8001), (5139, 6223)]