164449887

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{197}}^1\times {\mathrm{313}}^1$

素因数の和:647

約数の個数: 32

約数和(自身を含む): 254656512

約数和(自身を除く): 90206625

約数列:

[1, 3, 7, 21, 127, 197, 313, 381, 591, 889, 939, 1379, 2191, 2667, 4137, 6573, 25019, 39751, 61661, 75057, 119253, 175133, 184983, 278257, 431627, 525399, 834771, 1294881, 7830947, 23492841, 54816629, 164449887]

約数ペア:

[(1, 164449887), (3, 54816629), (7, 23492841), (21, 7830947), (127, 1294881), (197, 834771), (313, 525399), (381, 431627), (591, 278257), (889, 184983), (939, 175133), (1379, 119253), (2191, 75057), (2667, 61661), (4137, 39751), (6573, 25019)]