217648

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{223}}^1$

素因数の和:292

約数の個数: 20

約数和(自身を含む): 430528

約数和(自身を除く): 212880

約数列:

[1, 2, 4, 8, 16, 61, 122, 223, 244, 446, 488, 892, 976, 1784, 3568, 13603, 27206, 54412, 108824, 217648]

約数ペア:

[(1, 217648), (2, 108824), (4, 54412), (8, 27206), (16, 13603), (61, 3568), (122, 1784), (223, 976), (244, 892), (446, 488)]