20292321

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:182

約数の個数: 48

約数和(自身を含む): 33474048

約数和(自身を除く): 13181727

約数列:

[1, 3, 7, 21, 31, 49, 61, 73, 93, 147, 183, 217, 219, 427, 511, 651, 1281, 1519, 1533, 1891, 2263, 2989, 3577, 4453, 4557, 5673, 6789, 8967, 10731, 13237, 13359, 15841, 31171, 39711, 47523, 92659, 93513, 110887, 138043, 218197, 277977, 332661, 414129, 654591, 966301, 2898903, 6764107, 20292321]

約数ペア:

[(1, 20292321), (3, 6764107), (7, 2898903), (21, 966301), (31, 654591), (49, 414129), (61, 332661), (73, 277977), (93, 218197), (147, 138043), (183, 110887), (217, 93513), (219, 92659), (427, 47523), (511, 39711), (651, 31171), (1281, 15841), (1519, 13359), (1533, 13237), (1891, 10731), (2263, 8967), (2989, 6789), (3577, 5673), (4453, 4557)]