18512516

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{1663}}^1$

素因数の和:1712

約数の個数: 36

約数和(自身を含む): 37180416

約数和(自身を除く): 18667900

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 121, 242, 253, 484, 506, 1012, 1663, 2783, 3326, 5566, 6652, 11132, 18293, 36586, 38249, 73172, 76498, 152996, 201223, 402446, 420739, 804892, 841478, 1682956, 4628129, 9256258, 18512516]

約数ペア:

[(1, 18512516), (2, 9256258), (4, 4628129), (11, 1682956), (22, 841478), (23, 804892), (44, 420739), (46, 402446), (92, 201223), (121, 152996), (242, 76498), (253, 73172), (484, 38249), (506, 36586), (1012, 18293), (1663, 11132), (2783, 6652), (3326, 5566)]