20830047

素因数分解:

$3^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{653}}^1$

素因数の和:708

約数の個数: 32

約数和(自身を含む): 33484800

約数和(自身を除く): 12654753

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 217, 343, 651, 653, 1029, 1519, 1959, 4557, 4571, 10633, 13713, 20243, 31899, 31997, 60729, 95991, 141701, 223979, 425103, 671937, 991907, 2975721, 6943349, 20830047]

約数ペア:

[(1, 20830047), (3, 6943349), (7, 2975721), (21, 991907), (31, 671937), (49, 425103), (93, 223979), (147, 141701), (217, 95991), (343, 60729), (651, 31997), (653, 31899), (1029, 20243), (1519, 13713), (1959, 10633), (4557, 4571)]