21037040637

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1\times {\mathrm{521}}^1\times {\mathrm{1163}}^1$

素因数の和:1921

約数の個数: 32

約数和(自身を含む): 28698541056

約数和(自身を除く): 7661500419

約数列:

[1, 3, 71, 163, 213, 489, 521, 1163, 1563, 3489, 11573, 34719, 36991, 82573, 84923, 110973, 189569, 247719, 254769, 568707, 605923, 1817769, 6029533, 13459399, 18088599, 40378197, 43020533, 98765449, 129061599, 296296347, 7012346879, 21037040637]

約数ペア:

[(1, 21037040637), (3, 7012346879), (71, 296296347), (163, 129061599), (213, 98765449), (489, 43020533), (521, 40378197), (1163, 18088599), (1563, 13459399), (3489, 6029533), (11573, 1817769), (34719, 605923), (36991, 568707), (82573, 254769), (84923, 247719), (110973, 189569)]