21297627

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1291}}^1$

素因数の和:1360

約数の個数: 32

約数和(自身を含む): 34728960

約数和(自身を除く): 13431333

約数列:

[1, 3, 9, 13, 27, 39, 47, 117, 141, 351, 423, 611, 1269, 1291, 1833, 3873, 5499, 11619, 16497, 16783, 34857, 50349, 60677, 151047, 182031, 453141, 546093, 788801, 1638279, 2366403, 7099209, 21297627]

約数ペア:

[(1, 21297627), (3, 7099209), (9, 2366403), (13, 1638279), (27, 788801), (39, 546093), (47, 453141), (117, 182031), (141, 151047), (351, 60677), (423, 50349), (611, 34857), (1269, 16783), (1291, 16497), (1833, 11619), (3873, 5499)]