21063856

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6299}}^1$

素因数の和:6337

約数の個数: 40

約数和(自身を含む): 46872000

約数和(自身を除く): 25808144

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 152, 176, 209, 304, 418, 836, 1672, 3344, 6299, 12598, 25196, 50392, 69289, 100784, 119681, 138578, 239362, 277156, 478724, 554312, 957448, 1108624, 1316491, 1914896, 2632982, 5265964, 10531928, 21063856]

約数ペア:

[(1, 21063856), (2, 10531928), (4, 5265964), (8, 2632982), (11, 1914896), (16, 1316491), (19, 1108624), (22, 957448), (38, 554312), (44, 478724), (76, 277156), (88, 239362), (152, 138578), (176, 119681), (209, 100784), (304, 69289), (418, 50392), (836, 25196), (1672, 12598), (3344, 6299)]