28956291

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{199}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 49190400

約数和(自身を除く): 20234109

約数列:

[1, 3, 7, 13, 21, 39, 41, 91, 123, 169, 199, 273, 287, 507, 533, 597, 861, 1183, 1393, 1599, 2587, 3549, 3731, 4179, 6929, 7761, 8159, 11193, 18109, 20787, 24477, 33631, 48503, 54327, 57113, 100893, 106067, 145509, 171339, 235417, 318201, 706251, 742469, 1378871, 2227407, 4136613, 9652097, 28956291]

約数ペア:

[(1, 28956291), (3, 9652097), (7, 4136613), (13, 2227407), (21, 1378871), (39, 742469), (41, 706251), (91, 318201), (123, 235417), (169, 171339), (199, 145509), (273, 106067), (287, 100893), (507, 57113), (533, 54327), (597, 48503), (861, 33631), (1183, 24477), (1393, 20787), (1599, 18109), (2587, 11193), (3549, 8159), (3731, 7761), (4179, 6929)]