19994028

素因数分解:

$2^2\times 3^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1$

素因数の和:386

約数の個数: 48

約数和(自身を含む): 47910240

約数和(自身を除く): 27916212

約数列:

[1, 2, 3, 4, 6, 12, 89, 97, 178, 193, 194, 267, 291, 356, 386, 388, 534, 579, 582, 772, 1068, 1158, 1164, 2316, 8633, 17177, 17266, 18721, 25899, 34354, 34532, 37442, 51531, 51798, 56163, 68708, 74884, 103062, 103596, 112326, 206124, 224652, 1666169, 3332338, 4998507, 6664676, 9997014, 19994028]

約数ペア:

[(1, 19994028), (2, 9997014), (3, 6664676), (4, 4998507), (6, 3332338), (12, 1666169), (89, 224652), (97, 206124), (178, 112326), (193, 103596), (194, 103062), (267, 74884), (291, 68708), (356, 56163), (386, 51798), (388, 51531), (534, 37442), (579, 34532), (582, 34354), (772, 25899), (1068, 18721), (1158, 17266), (1164, 17177), (2316, 8633)]