389928591

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{3083}}^1$

素因数の和:3172

約数の個数: 48

約数和(自身を含む): 646603776

約数和(自身を除く): 256675185

約数列:

[1, 3, 9, 13, 23, 39, 47, 69, 117, 141, 207, 299, 423, 611, 897, 1081, 1833, 2691, 3083, 3243, 5499, 9249, 9729, 14053, 27747, 40079, 42159, 70909, 120237, 126477, 144901, 212727, 360711, 434703, 638181, 921817, 1304109, 1883713, 2765451, 3332723, 5651139, 8296353, 9998169, 16953417, 29994507, 43325399, 129976197, 389928591]

約数ペア:

[(1, 389928591), (3, 129976197), (9, 43325399), (13, 29994507), (23, 16953417), (39, 9998169), (47, 8296353), (69, 5651139), (117, 3332723), (141, 2765451), (207, 1883713), (299, 1304109), (423, 921817), (611, 638181), (897, 434703), (1081, 360711), (1833, 212727), (2691, 144901), (3083, 126477), (3243, 120237), (5499, 70909), (9249, 42159), (9729, 40079), (14053, 27747)]