19745778

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1699}}^1$

素因数の和:1866

約数の個数: 32

約数和(自身を含む): 42840000

約数和(自身を除く): 23094222

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 149, 298, 447, 894, 1699, 1937, 3398, 3874, 5097, 5811, 10194, 11622, 22087, 44174, 66261, 132522, 253151, 506302, 759453, 1518906, 3290963, 6581926, 9872889, 19745778]

約数ペア:

[(1, 19745778), (2, 9872889), (3, 6581926), (6, 3290963), (13, 1518906), (26, 759453), (39, 506302), (78, 253151), (149, 132522), (298, 66261), (447, 44174), (894, 22087), (1699, 11622), (1937, 10194), (3398, 5811), (3874, 5097)]