205711947

素因数分解:

$3^3\times 7^2\times {\mathrm{61}}^1\times {\mathrm{2549}}^1$

素因数の和:2633

約数の個数: 48

約数和(自身を含む): 360468000

約数和(自身を除く): 154756053

約数列:

[1, 3, 7, 9, 21, 27, 49, 61, 63, 147, 183, 189, 427, 441, 549, 1281, 1323, 1647, 2549, 2989, 3843, 7647, 8967, 11529, 17843, 22941, 26901, 53529, 68823, 80703, 124901, 155489, 160587, 374703, 466467, 481761, 1088423, 1124109, 1399401, 3265269, 3372327, 4198203, 7618961, 9795807, 22856883, 29387421, 68570649, 205711947]

約数ペア:

[(1, 205711947), (3, 68570649), (7, 29387421), (9, 22856883), (21, 9795807), (27, 7618961), (49, 4198203), (61, 3372327), (63, 3265269), (147, 1399401), (183, 1124109), (189, 1088423), (427, 481761), (441, 466467), (549, 374703), (1281, 160587), (1323, 155489), (1647, 124901), (2549, 80703), (2989, 68823), (3843, 53529), (7647, 26901), (8967, 22941), (11529, 17843)]