20912178

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{13457}}^1$

素因数の和:13506

約数の個数: 32

約数和(自身を含む): 49094784

約数和(自身を除く): 28182606

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 74, 111, 222, 259, 518, 777, 1554, 13457, 26914, 40371, 80742, 94199, 188398, 282597, 497909, 565194, 995818, 1493727, 2987454, 3485363, 6970726, 10456089, 20912178]

約数ペア:

[(1, 20912178), (2, 10456089), (3, 6970726), (6, 3485363), (7, 2987454), (14, 1493727), (21, 995818), (37, 565194), (42, 497909), (74, 282597), (111, 188398), (222, 94199), (259, 80742), (518, 40371), (777, 26914), (1554, 13457)]