20919094

素因数分解:

$2^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{163}}^1$

素因数の和:364

約数の個数: 32

約数和(自身を含む): 36840960

約数和(自身を除く): 15921866

約数列:

[1, 2, 7, 14, 89, 103, 163, 178, 206, 326, 623, 721, 1141, 1246, 1442, 2282, 9167, 14507, 16789, 18334, 29014, 33578, 64169, 101549, 117523, 128338, 203098, 235046, 1494221, 2988442, 10459547, 20919094]

約数ペア:

[(1, 20919094), (2, 10459547), (7, 2988442), (14, 1494221), (89, 235046), (103, 203098), (163, 128338), (178, 117523), (206, 101549), (326, 64169), (623, 33578), (721, 29014), (1141, 18334), (1246, 16789), (1442, 14507), (2282, 9167)]