18903388

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{263}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 40449024

約数和(自身を除く): 21545636

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 151, 238, 263, 302, 476, 526, 604, 1052, 1057, 1841, 2114, 2567, 3682, 4228, 4471, 5134, 7364, 8942, 10268, 17884, 17969, 31297, 35938, 39713, 62594, 71876, 79426, 125188, 158852, 277991, 555982, 675121, 1111964, 1350242, 2700484, 4725847, 9451694, 18903388]

約数ペア:

[(1, 18903388), (2, 9451694), (4, 4725847), (7, 2700484), (14, 1350242), (17, 1111964), (28, 675121), (34, 555982), (68, 277991), (119, 158852), (151, 125188), (238, 79426), (263, 71876), (302, 62594), (476, 39713), (526, 35938), (604, 31297), (1052, 17969), (1057, 17884), (1841, 10268), (2114, 8942), (2567, 7364), (3682, 5134), (4228, 4471)]