21336496

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1669}}^1$

素因数の和:1741

約数の個数: 40

約数和(自身を含む): 44729280

約数和(自身を除く): 23392784

約数列:

[1, 2, 4, 8, 16, 17, 34, 47, 68, 94, 136, 188, 272, 376, 752, 799, 1598, 1669, 3196, 3338, 6392, 6676, 12784, 13352, 26704, 28373, 56746, 78443, 113492, 156886, 226984, 313772, 453968, 627544, 1255088, 1333531, 2667062, 5334124, 10668248, 21336496]

約数ペア:

[(1, 21336496), (2, 10668248), (4, 5334124), (8, 2667062), (16, 1333531), (17, 1255088), (34, 627544), (47, 453968), (68, 313772), (94, 226984), (136, 156886), (188, 113492), (272, 78443), (376, 56746), (752, 28373), (799, 26704), (1598, 13352), (1669, 12784), (3196, 6676), (3338, 6392)]