19178355

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{269}}^1$

素因数の和:388

約数の個数: 48

約数和(自身を含む): 36197280

約数和(自身を除く): 17018925

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 97, 105, 147, 245, 269, 291, 485, 679, 735, 807, 1345, 1455, 1883, 2037, 3395, 4035, 4753, 5649, 9415, 10185, 13181, 14259, 23765, 26093, 28245, 39543, 65905, 71295, 78279, 130465, 182651, 197715, 391395, 547953, 913255, 1278557, 2739765, 3835671, 6392785, 19178355]

約数ペア:

[(1, 19178355), (3, 6392785), (5, 3835671), (7, 2739765), (15, 1278557), (21, 913255), (35, 547953), (49, 391395), (97, 197715), (105, 182651), (147, 130465), (245, 78279), (269, 71295), (291, 65905), (485, 39543), (679, 28245), (735, 26093), (807, 23765), (1345, 14259), (1455, 13181), (1883, 10185), (2037, 9415), (3395, 5649), (4035, 4753)]