20218820979

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{709507}}^1$

素因数の和:709599

約数の個数: 32

約数和(自身を含む): 32694128640

約数和(自身を除く): 12475307661

約数列:

[1, 3, 7, 21, 23, 59, 69, 161, 177, 413, 483, 1239, 1357, 4071, 9499, 28497, 709507, 2128521, 4966549, 14899647, 16318661, 41860913, 48955983, 114230627, 125582739, 293026391, 342691881, 879079173, 962800999, 2888402997, 6739606993, 20218820979]

約数ペア:

[(1, 20218820979), (3, 6739606993), (7, 2888402997), (21, 962800999), (23, 879079173), (59, 342691881), (69, 293026391), (161, 125582739), (177, 114230627), (413, 48955983), (483, 41860913), (1239, 16318661), (1357, 14899647), (4071, 4966549), (9499, 2128521), (28497, 709507)]