2019900519

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{31219}}^1$

素因数の和:31324

約数の個数: 48

約数和(自身を含む): 3636505600

約数和(自身を除く): 1616605081

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 79, 91, 117, 237, 273, 553, 711, 819, 1027, 1659, 3081, 4977, 7189, 9243, 21567, 31219, 64701, 93657, 218533, 280971, 405847, 655599, 1217541, 1966797, 2466301, 2840929, 3652623, 7398903, 8522787, 17264107, 22196709, 25568361, 32061913, 51792321, 96185739, 155376963, 224433391, 288557217, 673300173, 2019900519]

約数ペア:

[(1, 2019900519), (3, 673300173), (7, 288557217), (9, 224433391), (13, 155376963), (21, 96185739), (39, 51792321), (63, 32061913), (79, 25568361), (91, 22196709), (117, 17264107), (237, 8522787), (273, 7398903), (553, 3652623), (711, 2840929), (819, 2466301), (1027, 1966797), (1659, 1217541), (3081, 655599), (4977, 405847), (7189, 280971), (9243, 218533), (21567, 93657), (31219, 64701)]