21554589

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{349}}^1$

素因数の和:549

約数の個数: 32

約数和(自身を含む): 35078400

約数和(自身を除く): 13523811

約数列:

[1, 3, 7, 17, 21, 51, 119, 173, 349, 357, 519, 1047, 1211, 2443, 2941, 3633, 5933, 7329, 8823, 17799, 20587, 41531, 60377, 61761, 124593, 181131, 422639, 1026409, 1267917, 3079227, 7184863, 21554589]

約数ペア:

[(1, 21554589), (3, 7184863), (7, 3079227), (17, 1267917), (21, 1026409), (51, 422639), (119, 181131), (173, 124593), (349, 61761), (357, 60377), (519, 41531), (1047, 20587), (1211, 17799), (2443, 8823), (2941, 7329), (3633, 5933)]