18657842

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1\times {\mathrm{199}}^1$

素因数の和:426

約数の個数: 32

約数和(自身を含む): 33196800

約数和(自身を除く): 14538958

約数列:

[1, 2, 7, 14, 37, 74, 181, 199, 259, 362, 398, 518, 1267, 1393, 2534, 2786, 6697, 7363, 13394, 14726, 36019, 46879, 51541, 72038, 93758, 103082, 252133, 504266, 1332703, 2665406, 9328921, 18657842]

約数ペア:

[(1, 18657842), (2, 9328921), (7, 2665406), (14, 1332703), (37, 504266), (74, 252133), (181, 103082), (199, 93758), (259, 72038), (362, 51541), (398, 46879), (518, 36019), (1267, 14726), (1393, 13394), (2534, 7363), (2786, 6697)]