21449961

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2657}}^1$

素因数の和:2702

約数の個数: 32

約数和(自身を含む): 35723520

約数和(自身を除く): 14273559

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 117, 207, 299, 351, 621, 897, 2657, 2691, 7971, 8073, 23913, 34541, 61111, 71739, 103623, 183333, 310869, 549999, 794443, 932607, 1649997, 2383329, 7149987, 21449961]

約数ペア:

[(1, 21449961), (3, 7149987), (9, 2383329), (13, 1649997), (23, 932607), (27, 794443), (39, 549999), (69, 310869), (117, 183333), (207, 103623), (299, 71739), (351, 61111), (621, 34541), (897, 23913), (2657, 8073), (2691, 7971)]