201438741

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{401}}^1\times {\mathrm{1259}}^1$

素因数の和:1689

約数の個数: 32

約数和(自身を含む): 324172800

約数和(自身を除く): 122734059

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 401, 1203, 1259, 2807, 3777, 7619, 8421, 8813, 22857, 23921, 26439, 53333, 71763, 159999, 167447, 502341, 504859, 1514577, 3534013, 9592321, 10602039, 28776963, 67146247, 201438741]

約数ペア:

[(1, 201438741), (3, 67146247), (7, 28776963), (19, 10602039), (21, 9592321), (57, 3534013), (133, 1514577), (399, 504859), (401, 502341), (1203, 167447), (1259, 159999), (2807, 71763), (3777, 53333), (7619, 26439), (8421, 23921), (8813, 22857)]