13305705

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{421}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 25401024

約数和(自身を除く): 12095319

約数列:

[1, 3, 5, 7, 15, 21, 35, 43, 49, 105, 129, 147, 215, 245, 301, 421, 645, 735, 903, 1263, 1505, 2105, 2107, 2947, 4515, 6315, 6321, 8841, 10535, 14735, 18103, 20629, 31605, 44205, 54309, 61887, 90515, 103145, 126721, 271545, 309435, 380163, 633605, 887047, 1900815, 2661141, 4435235, 13305705]

約数ペア:

[(1, 13305705), (3, 4435235), (5, 2661141), (7, 1900815), (15, 887047), (21, 633605), (35, 380163), (43, 309435), (49, 271545), (105, 126721), (129, 103145), (147, 90515), (215, 61887), (245, 54309), (301, 44205), (421, 31605), (645, 20629), (735, 18103), (903, 14735), (1263, 10535), (1505, 8841), (2105, 6321), (2107, 6315), (2947, 4515)]