40637457

素因数分解:

$3^4\times 7^1\times {\mathrm{71671}}^1$

素因数の和:71690

約数の個数: 20

約数和(自身を含む): 69378496

約数和(自身を除く): 28741039

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 71671, 215013, 501697, 645039, 1505091, 1935117, 4515273, 5805351, 13545819, 40637457]

約数ペア:

[(1, 40637457), (3, 13545819), (7, 5805351), (9, 4515273), (21, 1935117), (27, 1505091), (63, 645039), (81, 501697), (189, 215013), (567, 71671)]