21348249

素因数分解:

$3^1\times {\mathrm{13}}^3\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:162

約数の個数: 32

約数和(自身を含む): 31987200

約数和(自身を除く): 10638951

約数列:

[1, 3, 13, 39, 41, 79, 123, 169, 237, 507, 533, 1027, 1599, 2197, 3081, 3239, 6591, 6929, 9717, 13351, 20787, 40053, 42107, 90077, 126321, 173563, 270231, 520689, 547391, 1642173, 7116083, 21348249]

約数ペア:

[(1, 21348249), (3, 7116083), (13, 1642173), (39, 547391), (41, 520689), (79, 270231), (123, 173563), (169, 126321), (237, 90077), (507, 42107), (533, 40053), (1027, 20787), (1599, 13351), (2197, 9717), (3081, 6929), (3239, 6591)]