21661167

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:279

約数の個数: 32

約数和(自身を含む): 32626944

約数和(自身を除く): 10965777

約数列:

[1, 3, 11, 33, 67, 97, 101, 201, 291, 303, 737, 1067, 1111, 2211, 3201, 3333, 6499, 6767, 9797, 19497, 20301, 29391, 71489, 74437, 107767, 214467, 223311, 323301, 656399, 1969197, 7220389, 21661167]

約数ペア:

[(1, 21661167), (3, 7220389), (11, 1969197), (33, 656399), (67, 323301), (97, 223311), (101, 214467), (201, 107767), (291, 74437), (303, 71489), (737, 29391), (1067, 20301), (1111, 19497), (2211, 9797), (3201, 6767), (3333, 6499)]