40212207

素因数分解:

$3^4\times 7^1\times {\mathrm{70921}}^1$

素因数の和:70940

約数の個数: 20

約数和(自身を含む): 68652496

約数和(自身を除く): 28440289

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 70921, 212763, 496447, 638289, 1489341, 1914867, 4468023, 5744601, 13404069, 40212207]

約数ペア:

[(1, 40212207), (3, 13404069), (7, 5744601), (9, 4468023), (21, 1914867), (27, 1489341), (63, 638289), (81, 496447), (189, 212763), (567, 70921)]