18585116

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:135

約数の個数: 72

約数和(自身を含む): 39325440

約数和(自身を除く): 20740324

約数列:

[1, 2, 4, 11, 19, 22, 38, 43, 44, 47, 76, 86, 94, 121, 172, 188, 209, 242, 418, 473, 484, 517, 817, 836, 893, 946, 1034, 1634, 1786, 1892, 2021, 2068, 2299, 3268, 3572, 4042, 4598, 5203, 5687, 8084, 8987, 9196, 9823, 10406, 11374, 17974, 19646, 20812, 22231, 22748, 35948, 38399, 39292, 44462, 76798, 88924, 98857, 108053, 153596, 197714, 216106, 244541, 395428, 422389, 432212, 489082, 844778, 978164, 1689556, 4646279, 9292558, 18585116]

約数ペア:

[(1, 18585116), (2, 9292558), (4, 4646279), (11, 1689556), (19, 978164), (22, 844778), (38, 489082), (43, 432212), (44, 422389), (47, 395428), (76, 244541), (86, 216106), (94, 197714), (121, 153596), (172, 108053), (188, 98857), (209, 88924), (242, 76798), (418, 44462), (473, 39292), (484, 38399), (517, 35948), (817, 22748), (836, 22231), (893, 20812), (946, 19646), (1034, 17974), (1634, 11374), (1786, 10406), (1892, 9823), (2021, 9196), (2068, 8987), (2299, 8084), (3268, 5687), (3572, 5203), (4042, 4598)]