21697254

素因数分解:

$2^1\times 3^3\times {\mathrm{443}}^1\times {\mathrm{907}}^1$

素因数の和:1361

約数の個数: 32

約数和(自身を含む): 48378240

約数和(自身を除く): 26680986

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 443, 886, 907, 1329, 1814, 2658, 2721, 3987, 5442, 7974, 8163, 11961, 16326, 23922, 24489, 48978, 401801, 803602, 1205403, 2410806, 3616209, 7232418, 10848627, 21697254]

約数ペア:

[(1, 21697254), (2, 10848627), (3, 7232418), (6, 3616209), (9, 2410806), (18, 1205403), (27, 803602), (54, 401801), (443, 48978), (886, 24489), (907, 23922), (1329, 16326), (1814, 11961), (2658, 8163), (2721, 7974), (3987, 5442)]