19902958

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1$

素因数の和:300

約数の個数: 32

約数和(自身を含む): 32622912

約数和(自身を除く): 12719954

約数列:

[1, 2, 23, 41, 46, 61, 82, 122, 173, 346, 943, 1403, 1886, 2501, 2806, 3979, 5002, 7093, 7958, 10553, 14186, 21106, 57523, 115046, 163139, 242719, 326278, 432673, 485438, 865346, 9951479, 19902958]

約数ペア:

[(1, 19902958), (2, 9951479), (23, 865346), (41, 485438), (46, 432673), (61, 326278), (82, 242719), (122, 163139), (173, 115046), (346, 57523), (943, 21106), (1403, 14186), (1886, 10553), (2501, 7958), (2806, 7093), (3979, 5002)]