20051859

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:235

約数の個数: 32

約数和(自身を含む): 29363200

約数和(自身を除く): 9311341

約数列:

[1, 3, 19, 57, 61, 73, 79, 183, 219, 237, 1159, 1387, 1501, 3477, 4161, 4453, 4503, 4819, 5767, 13359, 14457, 17301, 84607, 91561, 109573, 253821, 274683, 328719, 351787, 1055361, 6683953, 20051859]

約数ペア:

[(1, 20051859), (3, 6683953), (19, 1055361), (57, 351787), (61, 328719), (73, 274683), (79, 253821), (183, 109573), (219, 91561), (237, 84607), (1159, 17301), (1387, 14457), (1501, 13359), (3477, 5767), (4161, 4819), (4453, 4503)]