20452778

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{12517}}^1$

素因数の和:12581

約数の個数: 16

約数和(自身を含む): 33047520

約数和(自身を除く): 12594742

約数列:

[1, 2, 19, 38, 43, 86, 817, 1634, 12517, 25034, 237823, 475646, 538231, 1076462, 10226389, 20452778]

約数ペア:

[(1, 20452778), (2, 10226389), (19, 1076462), (38, 538231), (43, 475646), (86, 237823), (817, 25034), (1634, 12517)]