18493419

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{457}}^1$

素因数の和:555

約数の個数: 32

約数和(自身を含む): 29546496

約数和(自身を除く): 11053077

約数列:

[1, 3, 7, 21, 41, 47, 123, 141, 287, 329, 457, 861, 987, 1371, 1927, 3199, 5781, 9597, 13489, 18737, 21479, 40467, 56211, 64437, 131159, 150353, 393477, 451059, 880639, 2641917, 6164473, 18493419]

約数ペア:

[(1, 18493419), (3, 6164473), (7, 2641917), (21, 880639), (41, 451059), (47, 393477), (123, 150353), (141, 131159), (287, 64437), (329, 56211), (457, 40467), (861, 21479), (987, 18737), (1371, 13489), (1927, 9597), (3199, 5781)]