19776688

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{881}}^1$

素因数の和:973

約数の個数: 40

約数和(自身を含む): 40684896

約数和(自身を除く): 20908208

約数列:

[1, 2, 4, 8, 16, 23, 46, 61, 92, 122, 184, 244, 368, 488, 881, 976, 1403, 1762, 2806, 3524, 5612, 7048, 11224, 14096, 20263, 22448, 40526, 53741, 81052, 107482, 162104, 214964, 324208, 429928, 859856, 1236043, 2472086, 4944172, 9888344, 19776688]

約数ペア:

[(1, 19776688), (2, 9888344), (4, 4944172), (8, 2472086), (16, 1236043), (23, 859856), (46, 429928), (61, 324208), (92, 214964), (122, 162104), (184, 107482), (244, 81052), (368, 53741), (488, 40526), (881, 22448), (976, 20263), (1403, 14096), (1762, 11224), (2806, 7048), (3524, 5612)]