18991630

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{2797}}^1$

素因数の和:2908

約数の個数: 32

約数和(自身を含む): 39485376

約数和(自身を除く): 20493746

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 97, 194, 485, 679, 970, 1358, 2797, 3395, 5594, 6790, 13985, 19579, 27970, 39158, 97895, 195790, 271309, 542618, 1356545, 1899163, 2713090, 3798326, 9495815, 18991630]

約数ペア:

[(1, 18991630), (2, 9495815), (5, 3798326), (7, 2713090), (10, 1899163), (14, 1356545), (35, 542618), (70, 271309), (97, 195790), (194, 97895), (485, 39158), (679, 27970), (970, 19579), (1358, 13985), (2797, 6790), (3395, 5594)]